Parent | Children | Sport(s) | Country of origin |
Cor van Aanholt | Philipine van Aanholt, Odile van Aanholt | Sailing | Netherlands Antilles ( Curaçao)
Aruba
Netherlands |
Mary Abbott | Margaret Abbott | Golf | United States |
| Hifumi Abe, Uta Abe | Judo | Japan |
| Valerie Adams, Steven Adams | Shot put / Basketball | New Zealand |
Cláudio Adão | Felipe Adão | Association football | Brazil |
| Marija Agbaba, Jelena Agbaba | Handball | Serbia |
Óscar Aguirregaray | Matías Aguirregaray | Association football | Uruguay |
Ahn Jae-hyung, Jiao Zhimin | An Byeong-hun | Table tennis, Golf | South Korea |
| Veronika Aigner, Barbara Aigner, Johannes Aigner | Para-alpine skiing | Austria |
| Julian Alaphilippe, Bryan Alaphilippe | Cycle sport | France |
Louie Alas | Kevin Alas, Junjun Alas | Basketball | Philippines |
Nigel Albon | Alexander Albon | Auto racing | United Kingdom ( England) Thailand |
Virgilijus Alekna | Mykolas Alekna | Discus throw | Lithuania |
Svetlana Alekseeva | Elena Kustarova | Figure skating | Russia |
| Anna-Maria Alexandri, Eirini-Marina Alexandri, Vasiliki Alexandri (triplets) | Synchronised swimming | Austria |
| Muhammad Ali, Rahaman Ali | Boxing | United States |
Muhammad Ali | Laila Ali | Boxing | United States |
Joe Allen (great-grandfather) Bobby Allen (grandfather) | Jacob Allen (father) Logan Schuchart. (grandfather) | Auto racing | United States |
Bobby Allison | Davey Allison, Clifford Allison | Stock car racing | United States |
Jen Allred | Shayna Powless, Neilson Powless | Long-distance running Cycle sport | United States |
Periko Alonso | Xabi Alonso, Mikel Alonso | Association football | Spain |
Luc Alphand | Estelle Alphand | Alpine skiing | France
Sweden |
| Hamit Altıntop, Halil Altıntop | Association football | Turkey |
| Pedro Amat Fontanals (in Spanish), Jaime Amat Fontanals (in Spanish), Francisco Amat Fontanals (in Spanish), Juan Amat Fontanals (in Spanish) | Field hockey | Spain |
Jaime Amat Fontanals (in Spanish) | Santi Amat, Santi Freixa (cousin) | Field hockey | Spain |
Francisco Amat Fontanals (in Spanish) | Pol Amat, Santi Freixa (cousin) | Field hockey | Spain |
| Al-Farouq Aminu, Alade Aminu | Basketball | Nigeria
United States |
Lala Amarnath | Mohinder Amarnath, Surinder Amarnath, Rajinder Amarnath | Cricket | India |
| Anand Amritraj, Vijay Amritraj | Tennis | India |
Anand Amritraj | Stephen Amritraj | Tennis | India
United States |
Vijay Amritraj | Prakash Amritraj | Tennis | India |
Kwame Ampadu | Ethan Ampadu | Association football | Ireland
United Kingdom ( Wales) |
| Ivica Ančić, Mario Ančić, Sanja Ančić | Tennis | Croatia |
| Asbjørn Kragh Andersen, Søren Kragh Andersen | Cycle sport | Denmark |
Dennis Anderson | Adam Anderson, Ryan Anderson, Krysten Anderson | Monster truck | United States |
Roy Andersson | Patrik Andersson, Daniel Andersson | Association football | Sweden |
| Erika Andreeva, Mirra Andreeva | Tennis | Russia |
Andretti family | | Auto racing | Italy
United States |
Jon Andrews | Ellesse Andrews | Track cycling | New Zealand |
Jesús Angoy | Jesjua Angoy-Cruyff | Association football / American football | Spain |
Vyacheslav Anisin Irina Cherniaeva | Marina Anissina, Mikhail Anisin | Ice hockey / Figure skating | Russia |
Anoaʻi family | | Professional wrestling | American Samoa
Samoa
United States
Canada |
| Faisal Antar, Roda Antar | Association football | Lebanon |
| Giannis Antetokounmpo, Thanasis Antetokounmpo, Kostas Antetokounmpo, Alex Antetokounmpo | Basketball | Greece |
Aiva Aparjode | Kristers Aparjods, Kendija Aparjode | Luge | Latvia |
Marlou Aquino | Matthew Aquino | Basketball | Philippines / Japan |
Franjo Arapović | Marko Arapović | Basketball | Croatia |
Hasson Arbubakrr | Hassan Whiteside | American football / Basketball | United States |
| Joaquín Arcega, José Arcega, Fernando Arcega | Basketball | Spain |
Joaquín Arcega | J. J. Arcega-Whiteside | Basketball, American football | Spain |
| John Archibald, Katie Archibald | Cycle sport | United Kingdom ( Scotland) |
| Mai Asada, Mao Asada | Figure skating | Japan |
Antonio Ascari | Alberto Ascari | Motorsport | Italy |
Lisa Ashton | Danielle Ashton | Darts | United Kingdom ( England) |
| Dan Atherton, Gee Atherton, Rachel Atherton | Cycle sport, Downhill mountain biking | United Kingdom ( England) |
Pierre Aubameyang | Catilina Aubameyang, Willy Aubameyang, Pierre-Emerick Aubameyang | Association football | Gabon
France |
Ronald Van Avermaet | Greg Van Avermaet | Road bicycle racing | Belgium |
Albert Azaryan | Eduard Azaryan | Gymnastics | Soviet Union ( Armenian SSR)
Armenia |
Abedi Pele | André Ayew, Jordan Ayew, Ibrahim Ayew | Association football | Ghana |
Magnus Bäckstedt Megan Hughes | Elynor Bäckstedt, Zoe Bäckstedt | Cycle sport | Sweden United Kingdom ( Wales) |
Gustavo Badell | Yamila Badell | Association football | Uruguay |
Jean-Claude Bagot | Yoann Bagot | Cycle sport | France |
David Bairstow | Jonny Bairstow | Cricket | United Kingdom ( England) |
John Baldwin Sr. | John Baldwin, Don Baldwin, Donna Baldwin | Figure skating | United States |
| Mosab Balhous, Anas Balhous | Association football | Syria |
| Lonzo, LiAngelo, and LaMelo Ball | Basketball | United States |
Sergei Baltacha | Sergei Baltacha Jr., Elena Baltacha | Association football Tennis | Soviet Union ( Ukrainian SSR)
United Kingdom |
Rubens Barrichello | Eduardo Barrichello | Motorsport | Brazil |
Billy Bates | William Bates | Cricket/Association football | United Kingdom ( England)
United Kingdom ( Wales) |
William Bates | Ted Bates | Cricket/Association football | United Kingdom ( Wales)
United Kingdom ( England) |
| Guin Batten, Miriam Batten | Rowing | United Kingdom ( England) |
| Rudy Barbier, Pierre Barbier | Cycle sport | France |
| Franco Baresi, Giuseppe Baresi | Association football | Italy |
Giuseppe Baresi | Regina Baresi | Association football | Italy |
| Hannah Barnes, Alice Barnes | Cycle sport | United Kingdom ( England) |
Sid Barras | Tom Barras | Cycle sport | United Kingdom ( England) |
| Mutaz Essa Barshim, Muamer Aissa Barsham, Meshaal Barsham | Track and field, Association football | Qatar |
| Kane Barrett, Beauden Barrett, Scott Barrett, Jordie Barrett | Rugby union | New Zealand |
Rick Barry | Scooter, Jon, Brent and Drew Barry | Basketball | United States |
| Sally Barsosio, Florence Barsosio | Track and field | Kenya |
Karel Bártů | Jan Bártů | Modern pentathlon | Czechoslovakia |
| Bates Battaglia, Anthony Battaglia | Ice hockey | United States |
Alex Baumann | Ashton Baumann | Swimming | Canada |
| Alain Baxter, Noel Baxter | Alpine skiing | Great Britain ( Scotland) |
| Ryan Bayley, Kristine Bayley | Track cycling | Australia |
John Beattie | Johnnie Beattie | Rugby union | United Kingdom ( Scotland) |
| Bridget Becker, Scott Becker, Sean Becker | Curling | New Zealand |
Benoni Beheyt (grandfather) | Kurt Van Keirsbulck (father) | Road bicycle racing | Belgium |
Kurt Van Keirsbulck (father) | Guillaume Van Keirsbulck (grandson) | Road bicycle racing | Belgium |
Derek Bell | Justin Bell | Motor sport | United Kingdom |
| Martin Bell, Graham Bell | Alpine skiing | United Kingdom |
| Chantal Beltman, Ghita Beltman | Road bicycle racing | Netherlands |
| Lars Bender, Sven Bender | Association football | Germany |
Winston Benjamin | Rai Benjamin | Cricket Track and field | West Indies United States |
Nigel Benn | Conor Benn | Boxing | United Kingdom ( England) |
| Takumi Beppu, Fumiyuki Beppu | Road bicycle racing | Japan |
| Aleksei Berezutski, Vasili Berezutski | Association football | Russia |
Arturo Bergamasco | Mauro Bergamasco, Mirco Bergamasco | Rugby union | Italy |
| Lars Berger, Tora Berger | Biathlon, cross-country skiing | Norway |
Jean-François Bernard | Julien Bernard | Road bicycle racing | France |
Jean-René Bernaudeau | Giovanni Bernaudeau | Road bicycle racing | France |
| Raimund Bethge, Bernhard Hochwald | Bobsleigh, shooting | East Germany
Germany |
| Emmanuel Bett, Josphat Bett Kipkoech, David Kiprotich Bett[1] | Running | Kenya |
Jim Bett | Baldur Bett, Calum Bett | Association football | United Kingdom ( Scotland)
Iceland |
| Nicholas Bett, Aron Koech (twins) | Track and field | Kenya |
Tony Bettenhausen | Gary Bettenhausen, Merle Bettenhausen, Tony Bettenhausen Jr. | Auto racing | United States |
Volodymyr Bezsonov Viktoria Serkyh | Anna Bessonova | Association football / Rhythmic gymnastics | Soviet Union ( Ukrainian SSR) Ukraine |
| Henry Bibby, Jim Bibby | Basketball / Baseball | United States |
Henry Bibby | Mike Bibby | Basketball | United States |
| Brad Binder, Darryn Binder | Motorcycle racing | South Africa |
| Ben and Tom Birchall | Sidecar racing | United Kingdom ( England) |
| Dag Bjørndalen, Ole Einar Bjørndalen | Biathlon, cross-country skiing | Norway |
Jo Inge Bjørnebye | Stig Inge Bjørnebye | Ski jumping / Association football | Norway |
| Sadie Bjornsen, Erik Bjornsen | Cross-country skiing | United States |
Norman Black | Aaron Black (son), Chris Tan (stepson) | Basketball | United States Philippines |
| Danny Blanchflower. Jackie Blanchflower | Association football | United Kingdom ( Northern Ireland) |
Lou Blaney (grandfather) | Dave Blaney (father), Dale Blaney (uncle) | Stock car racing / All Star Circuit of Champions | United States |
Dave Blaney (father) | Ryan Blaney (grandson) | Stock car racing | United States |
David Blatt | Tamir Blatt | Basketball | United States
Israel |
Michael Bleekemolen | Sebastiaan Bleekemolen, Jeroen Bleekemolen | Motor sport | Netherlands |
Danny Blind | Daley Blind | Association football | Netherlands |
Stig Blomqvist | Tom Blomqvist | Rallying / Motor racing | Sweden
United Kingdom |
| Kevin-Prince Boateng, Jérôme Boateng | Association football | Ghana
Germany |
| Tarjei Bø, Johannes Thingnes Bø | Biathlon | Norway |
| Łukasz Bodnar, Maciej Bodnar | Road bicycle racing | Poland |
| Frank de Boer, Ronald de Boer | Association football | Netherlands |
| Håvard Bøkko, Hege Bøkko | Speed skating | Norway |
| Valeria Bondarenko, Alona Bondarenko, Kateryna Bondarenko | Tennis | Ukraine |
Bobby Bonds | Barry Bonds | Baseball | United States |
Ray Boone | Bob Boone | Baseball | United States |
Bob Boone | Bret Boone, Aaron Boone | Baseball | United States |
Ferdinando Longo Borghini, Guidina Dal Sasso | Paolo Longo Borghini, Elisa Longo Borghini | Cross-country skiing Cycle sport | Italy |
Jacques Borlée | Dylan Borlée, Kevin Borlée, Jonathan Borlée, Olivia Borlée | Track and field | Belgium |
| Dajana Bošković, Tijana Bošković | Volleyball | Bosnia and Herzegovina
Serbia |
Patrick Bourdais | Sébastien Bourdais | Auto racing | France |
| Jan Bos, Theo Bos | Speed skating and Road bicycle racing | Netherlands |
| Mouhanad Boushi, Nihad Al Boushi | Association football | Syria |
Ian Botham | Liam Botham | Cricket, association football, rugby union, rugby league | United Kingdom ( England) |
| Nacer Bouhanni, Rayane Bouhanni | Cycle sport | France) |
Jacky Boxberger | Ophélie Claude-Boxberger | Track and field | France |
| Gillian Boxx, Shannon Boxx | Softball / Association football | United States |
Ray Boyd Denise Robert Boyd | Alana Boyd | Track and field | Australia |
| Cloyd Boyer, Ken Boyer, Clete Boyer | Baseball | United States |
Jack Brabham | Geoff Brabham, Gary Brabham, David Brabham | Motor racing | Australia |
Geoff Brabham | Matthew Brabham | Motor racing | Australia
United States |
David Brabham, Lisa Thackwell | Sam Brabham | Motor racing | Australia
New Zealand
United Kingdom |
| Bob Bradley, Scott Bradley | Association football / Baseball | United States |
Bob Bradley | Michael Bradley | Association football | United States |
Abel Braga | Fábio Braga | Association football | Brazil
Portugal |
Lisa Brambani | Abby-Mae Parkinson | Cycle sport | United Kingdom ( England) |
| Gjermund Bråten, Øystein Bråten | Snowboarding / Freestyle skiing | Norway |
Harald Brattbakk | Filip Brattbakk | Association football | Norway |
| Ben Bright, Rowena Bright, Torah Bright | Snowboarding / Alpine skiing | Australia |
Robbie Brightwell Ann Packer | Ian Brightwell, David Brightwell | Track and field / Association football | United Kingdom ( England) |
Chris Broad | Stuart Broad | Cricket | United Kingdom ( England) |
Stuart Brown | Jake Brown | Sidecarcross | United Kingdom ( England) |
| Alistair Brownlee, Jonny Brownlee | Triathlon | United Kingdom ( England) |
Mark Brownlee | Scott Brownlee | Rowing | New Zealand |
Steve Bruce | Alex Bruce | Association football | United Kingdom ( England)
United Kingdom ( Northern Ireland)
Ireland |
Martin Brundle | Alex Brundle | Auto racing | United Kingdom ( England) |
| Martin Brundle, Robin Brundle | Auto racing | United Kingdom ( England) |
| Bryan brothers | Tennis | United States |
Joe Bryant | Kobe Bryant | Basketball | United States |
Sergey Bubka | Sergei Bubka | Track and field / Tennis | Soviet Union ( Ukrainian SSR)
Ukraine |
Jiří Bubla | Jiří Šlégr | Ice hockey | Czech Republic |
| Nicholas Buckland, Joseph Buckland | Figure skating | United Kingdom ( England) |
Andrei Bukin, Elena Vasiuk | Ivan Bukin | Ice dancing | Russia |
Alex Bunbury | Teal Bunbury | Association football | Canada
United States |
Vladimir Bure | Pavel Bure, Valeri Bure | Swimming Ice hockey | Soviet Union ( Russian SFSR)
Russia
United States |
Burge family | | Rugby union Rugby league | Australia |
| Ilya Burov, Maxim Burov | Freestyle skiing | Russia |
| Leroy Burrell, Dawn Burrell | Track and field | United States |
Leroy Burrell, Michelle Finn-Burrell | Cameron Burrell, Joshua Burrell | Track and field | United States |
Beryl Burton | Denise Burton | Cycle sport | Great Britain ( England) |
Jeff Burton | Harrison Burton | Stock car racing | United States |
Maurice Burton | Germain Burton | Cycle sport | Great Britain ( England) |
Ward Burton | Jeb Burton | Stock car racing | United States |
Jorge Burruchaga | Mauro Burruchaga, Román Burruchaga | Association football, Tennis | Argentina |
| Kamil Bury, Dominik Bury | Cross-country skiing | Poland |
Tom Busch | Kurt Busch, Kyle Busch | Stock car racing | United States |
Carles Busquets | Sergio Busquets | Association football | Spain |
| Vyacheslav Butsayev, Yuri Butsayev | Ice hockey | Russia |
John Button | Jenson Button | Rallycross / Auto racing | United Kingdom ( England) |
Franky De Buyst (in Dutch) | Jasper De Buyst | Cycle sport | Belgium |
Sonny Cabatu | Junjun Cabatu | Basketball | Philippines |
John H. Caldwell | Tim Caldwell, Sophie Caldwell | Cross-country skiing | United States |
| Cate Campbell, Bronte Campbell | Swimming | Australia |
| Fabio Cannavaro, Paolo Cannavaro | Association football | Italy |
| Isabella Cannuscio, Anastasia Cannuscio | Ice dancing | United States |
| Eric Cantona, Joel Cantona | Association football | France |
| Peter Carruthers, Kitty Carruthers | Figure skating | United States |
| Mauro Caviezel, Gino Caviezel | Alpine skiing | Switzerland |
Cha Bum-kun | Cha Du-ri | Association football | South Korea
Germany |
Giorgio Cagnotto, Carmen Casteiner | Tania Cagnotto | Diving | Italy |
Daniela Ceccarelli | Lara Colturi | Alpine skiing | Italy
Albania |
Johnny Cecotto | Johnny Cecotto Jr. | Auto racing | Venezuela |
| Francisco Cerúndolo, Constanza Cerundolo, Juan Manuel Cerúndolo | Tennis Field Hockey | Argentina |
Richard Coffey | Amir Coffey, Nia Coffey | Basketball | United States |
Ray Chadwick | Sydney Leroux | Baseball Association football | United States
Canada |
| Richard Chambers, Peter Chambers | Rowing | United Kingdom ( Northern Ireland) |
Gurwinder Singh Chandi | Manjeet Kaur | Field hockey / Athletics | India |
Vicky Chandhok | Karun Chandhok | Motorsport | India |
| Ian Chappell, Greg Chappell, Trevor Chappell | Cricket | Australia |
| John Charles, Mel Charles | Association football | United Kingdom ( Wales) |
Mel Charles | Jeremy Charles | Association football | United Kingdom ( Wales) |
Ruperta Charles | Kaila Charles, Afia Charles | Athletics / Basketball / Athletics | Antigua and Barbuda / United States / Antigua and Barbuda |
| Sylvain Chavanel, Sébastien Chavanel | Road bicycle racing | France |
| Eddie Cheever, Ross Cheever | Auto sport | United States |
Eddie Cheever | Eddie Cheever III | Auto sport | United States Italy |
| Mercy Cherono, Caroline Chepkoech Kipkirui | Long-distance running | Kenya |
Dmitri Cheryshev | Denis Cheryshev | Association football | CIS
Russia |
Peter Chiarelli | Talia Chiarelli | Ice hockey / Gymnastics | Canada |
Enrico Chiesa | Federico Chiesa | Association football | Italy |
| Tom Chilton, Max Chilton | Motorsport | United Kingdom |
| Mark Christian, Anna Christian | Cycle sport | United Kingdom ( Isle of Man) |
| Daniele Cinciarini (in Italian), Andrea Cinciarini | Basketball | Italy |
| Paul Clarke, Steve Clarke | Association football | United Kingdom ( Scotland) |
| Cesare Cipollini, Mario Cipollini | Road bicycle racing | Italy |
| Libby Clegg, James Clegg, Stephen Clegg | Para-sport | United Kingdom ( Scotland, England) |
Ray Clemence | Stephen Clemence | Association football | United Kingdom ( England) |
Lei Clijsters | Kim Clijsters, Elke Clijsters | Association football / Tennis | Belgium |
Skiing Cochrans | | Alpine skiing | United States |
Barbara Cochran | Ryan Cochran-Siegle | Alpine skiing | United States |
Lindy Cochran | Tim Kelley, Robby Kelley | Alpine skiing | United States |
| Jerry Codinera, Harmon Codinera & Pat Codinera | Basketball | Philippines |
Peter McColgan, Liz McColgan (divorced) | Eilish McColgan | Track and field | United Kingdom ( Northern Ireland
Scotland) |
Andy Cole | Devante Cole | Association football | United Kingdom ( England) |
Joe P. Coleman | Joe H. Coleman | Baseball | United States |
Joe H. Coleman | Casey Coleman | Baseball | United States |
Rob Collard | Ricky Collard, Jordan Collard | Auto racing | United Kingdom ( England) |
| Stefano Coletti, Alexandra Coletti | Auto racing / Alpine skiing | Monaco |
| Luís Pérez Companc, Pablo Pérez Companc | Auto racing | Argentina |
Sérgio Marceneiro da Conceição | Sérgio Fernandes da Conceição, Rodrigo Conceição, Francisco Conceição | Association football | Portugal |
| Simone Consonni, Chiara Consonni | Cycle sport | Italy |
Charles Coody (grandfather) | Parker Coody, Pierceson Coody (twin grandsons) | Golf | United States |
| Amber Cope, Angela Ruch | Stock car racing | United States |
| Katherine Copely, Dean Copely | Ice dancing | United States |
| Fausto Coppi, Serse Coppi | Cycle sport | Italy |
| Tim Coronel, Tom Coronel | Motorsport | Netherlands |
Gabriel Correa | Yannel Correa | Association football | Uruguay
Spain |
| Thibaut Courtois, Valérie Courtois | Association football / Volleyball | Belgium |
Lloyd Cowan | Dwayne Cowan[2] | Track and field | United Kingdom ( England) |
Colette Crabbé | Claire Michel | Swimming / Triathlon | Belgium |
| Matthew Crampton, Jessica Crampton | Track cycling | Great Britain ( England) |
| Chandra Crawford, Rosanna Crawford | Cross-country skiing / Biathlon | Canada |
Johan Cruyff | Jordi Cruyff | Association football | Netherlands |
László Cseh Sr. | László Cseh | Swimming | Hungary |
Fabio Cudicini | Carlo Cudicini | Association football | Italy |
| Marko Ćuk, Miloš Ćuk | Water polo | Serbia |
Randall Cunningham | Randall Cunningham II, Vashti Cunningham | American football Track and field | United States |
Dell Curry | Stephen Curry, Seth Curry | Basketball | United States |
| Irene Curtoni, Elena Curtoni | Alpine skiing | Italy |
| Michael Czyborra, Lennart Czyborra | Association football | Germany |
Hans Daams | Jessie Daams | Road bicycle racing | Netherlands Belgium |
Derek Daly | Conor Daly | Auto racing | Ireland United States |
| Nina Daniels, Lisa Daniels | Synchronised swimming | New Zealand |
Predrag Danilović | Olga Danilović | Basketball Tennis | Serbia and Montenegro
Serbia |
Pál Dárdai (grandfather) | Pál Dárdai (father) | Association football | Hungary |
Pál Dárdai (father) | Palkó Dárdai, Márton Dárdai (grandson) | Association football | Hungary Germany/ Hungary |
Nigel Davies | Sam Davies | Rugby union | United Kingdom ( Wales) |
| Billy Davies, John Davies | Association football | United Kingdom ( Scotland) |
| Alex Davison, Will Davison | Auto racing | Australia |
| Julian de Guzman, Jonathan de Guzmán | Association football | Canada
Netherlands |
| Mekseb Debesay, Mossana Debesai | Cycle sport | Eritrea |
Brian Deegan | Hailie Deegan | Freestyle motocross Auto racing | United States |
Iván DeJesús | Iván DeJesús Jr. | Baseball | Puerto Rico |
Jean-Denis Delétraz | Louis Delétraz | Motorsport | Switzerland |
| Walter Delle Karth, Werner Delle Karth | Bobsleigh | Austria |
Werner Delle Karth | Nico Delle Karth | Bobsleigh, Sailing | Austria |
| Véronique Delobel, Isabelle Delobel | Ice dancing | France |
Grégoire De Mévius | Guillaume De Mévius | Rallying | Belgium |
Phil Dent, Betty Ann Grubb Stuart | Brett Hansen-Dent (step-son), Taylor Dent | Tennis | Australia
United States |
| Laurens De Plus, Jasper De Plus | Cycle sport | Belgium |
Delino DeShields | Delino DeShields Jr. Diamond DeShields | Baseball Basketball | United States |
| Nate Diaz, Nick Diaz | Mixed martial arts | United States |
Djalma Dias | Djalminha | Association football | Brazil |
| Ejegayehu Dibaba, Tirunesh Dibaba, Genzebe Dibaba | Track and field | Ethiopia |
| Peter Dibben, Jonathan Dibben | Cycle sport | Great Britain ( England) |
Michael DiBiase | Ted DiBiase | Professional wrestling | United States |
Ted DiBiase | Ted DiBiase Jr., Mike DiBiase II, Brett DiBiase | Professional wrestling | United States |
| Manuela Di Centa, Giorgio Di Centa | Cross-country skiing | Italy |
Lucien Didier | Laurent Didier | Road bicycle racing | Luxembourg |
Jeremy Dier | Eric Dier | Tennis Association football | Great Britain ( England) |
| Mick van Dijke, Tim van Dijke | Cycle sport | Netherlands |
Adnan Dirjal | Muhannad Darjal | Association football | Iraq |
Jean Djorkaeff | Youri Djorkaeff | Association football | France |
| William Dod, Lottie Dod | Archery | United Kingdom ( England) |
| Reginald Doherty, Laurence Doherty | Tennis | United Kingdom |
| José Dolhem, Didier Pironi | Auto racing | France |
Tie Domi | Max Domi | Ice hockey | Canada |
Mick Doohan | Jack Doohan | Motorcycle racing, Auto racing | Australia |
Pat Doran | Liam Doran | Rallycross | United Kingdom ( England) |
Pierre-Antoine Dossevi | Thomas Dossevi, Mathieu Dossevi | Association football | Togo
France |
David Downey | Ray Downey | Boxing | Canada |
Phil Dowsett | Alex Dowsett | Motorsport, cycle sport | United Kingdom |
| Goran Dragić, Zoran Dragić | Basketball | Slovenia |
| Dick Dreissigacker, Pete Dreissigacker | Rowing | United States |
Dick Dreissigacker, Judy Geer | Hannah Dreissigacker, Emily Dreissigacker | Rowing, biathlon, cross-country skiing | United States |
| Kelly Druyts, Gerry Druyts, Demmy Druyts, Jessy Druyts, Lenny Druyts | Cycle sport | Belgium |
| Douglas Dryburgh, James Dryburgh | Curling | Great Britain ( Scotland) |
| Paul Duchesnay, Isabelle Duchesnay | Ice dancing | France Canada |
| Maxime Dufour-Lapointe, Chloé Dufour-Lapointe, Justine Dufour-Lapointe | Freestyle skiing moguls | Canada |
| Denise Dupont, Madeleine Dupont, Oliver Dupont | Curling | Denmark |
Dainis Dukurs | Tomass Dukurs, Martins Dukurs | Skeleton | Latvia |
Greg Duplantis, Helena Hedlund | Andreas Duplantis, Antoine Duplantis, Armand Duplantis, Johanna Duplantis | Pole vault / Track and field / Baseball | United States
Sweden |
| Jason Dungjen, Susan Dungjen | Figure skating | United States |
| Joey Dunlop, Robert Dunlop | Motorcycle Racing | United Kingdom ( Northern Ireland) |
Robert Dunlop | William Dunlop, Michael Dunlop | Motorcycle Racing | United Kingdom ( Northern Ireland) |
| Conor Dunne, Katy Dunne | Road bicycle racing / Tennis | Ireland United Kingdom ( England) |
Peter Dürr | Lena Dürr | Alpine skiing | Germany |
| Hollie Dykes, Lyndon Dykes | Artistic gymnastics, association football | Australia United Kingdom ( Scotland) |
Ralph Earnhardt | Dale Earnhardt | Auto racing | United States |
Dale Earnhardt | Dale Earnhardt Jr., Kerry Earnhardt | Auto racing | United States |
Kerry Earnhardt | Jeffrey Earnhardt, Bobby Earnhardt | Auto racing | United States |
| Guy East, Andrew East | Track cycling American football | United States |
| Tobias Eberhard, Julian Eberhard | Biathlon | Austria |
| Stian Eckhoff, Tiril Eckhoff | Biathlon | Norway |
Alfred Eder | Simon Eder | Biathlon | Austria |
| Sylvia Eder, Elfi Eder | Alpine skiing | Austria |
| Annette Edmondson, Alex Edmondson | Cycle sport | Australia |
Vilhjálmur Einarsson | Einar Vilhjálmsson | Track and field | Iceland |
| Attila Elek, György Elek | Ice dancing | Hungary |
| Mark Ella, Glen Ella, Gary Ella, Marcia Ella | Rugby union | Australia |
Bill Elliott | Chase Elliott | Stock car racing | United States |
| Dean Ellison, James Ellison | Motorcycle racing | United Kingdom ( England) |
Yehia Emam and Hamada Emam | Hazem Emam | Association football | Egypt |
Yves Ehrlacher, Cathy Muller | Yann Ehrlacher | Association football, motorsport | France |
| Juvenal Edjogo-Owono, Alberto Edjogo-Owono | Association football | Equatorial Guinea
Spain |
| Vicente Engonga, Óscar Engonga | Association football | Spain |
Óscar Engonga | Igor Engonga | Association football | Spain
Equatorial Guinea |
| Juan Epitié, Rubén Epitié | Association football | Equatorial Guinea
Spain |
Philippe Ermenault | Corentin Ermenault | Cycle sport | France |
Sergio Escudero | Sergio Escudero | Association football | Argentina
Japan
Spain |
| Aleix Espargaró, Pol Espargaró | Motorcycle racing | Spain |
Daniel Esposito | Chloe Esposito, Max Esposito | Modern pentathlon | Australia |
| Jonny Evans, Corry Evans | Association football | United Kingdom ( Northern Ireland) |
| Fred Evans, Aja Evans | American football / Bobsleigh | United States |
Gwyndaf Evans | Elfyn Evans | Rallying | United Kingdom ( Wales) |
Ros Evans | Neah Evans | Fell running, orienteering, cross-country skiing, cycle sport | Great Britain ( Scotland) |
| Simon Evans, Mitch Evans | Motor racing | New Zealand |
Patrick Evenepoel | Remco Evenepoel | Cycle sport | Belgium |
Patrick Ewing | Patrick Ewing Jr. | Basketball | Jamaica
United States |
Chris Eubank | Chris Eubank Jr. | Boxing | United Kingdom ( England) |
Cecil Exum | Dante Exum | Basketball | United States
Australia |
Oddmar Færø (grandfather) | Odmar Færø (father) | Association football | Faeroe Islands |
Odmar Færø (father) | Odmar Færø (grandson) | Association football | Faeroe Islands |
| Teo Fabi, Corrado Fabi | Motorsport | Italy |
| Wagnney Fabiano, Leonardo Santos | Mixed martial arts | Brazil |
Steve Fairbairn | Ian Fairbairn | Rowing | Australia
United Kingdom ( England) |
| Miguel Ángel Falasca, Guillermo Falasca | Volleyball | Spain
Argentina |
| Esquiva Falcão, Yamaguchi Falcão | Boxing | Brazil |
Kuli Faletau | Taulupe Faletau | Rugby union | Tonga
United Kingdom ( Wales) |
| Elena Fanchini, Nadia Fanchini, Sabrina Fanchini | Alpine skiing | Italy |
Fandi Ahmad | Irfan Fandi, Ikhsan Fandi, Ilhan Fandi | Association football | Singapore |
| Romy Farah, Robert Farah | Tennis | Colombia |
| Duarte Félix da Costa, António Félix da Costa | Auto racing | Portugal |
| Wes Felix, Allyson Felix | Sprinting | United States |
| Josef Fendt, Andrea Fendt | Luge | Germany |
Jorge Fernandez | Leylah Fernandez | Association football Tennis | Ecuador
Canada |
| Rio Ferdinand, Anton Ferdinand | Association football | United Kingdom ( England) |
| Bia Feres, Branca Feres | Synchronized swimming | Brazil |
Alex Ferguson | Darren Ferguson | Association football | United Kingdom ( Scotland) |
| Derek Ferguson, Barry Ferguson | Association football | United Kingdom ( Scotland) |
Barry Ferguson | Kyle Ferguson | Association football | United Kingdom ( Scotland) |
Derek Ferguson | Lewis Ferguson | Association football | United Kingdom ( Scotland) |
| Francisco Fernández Ochoa, Blanca Fernández Ochoa | Alpine skiing | Spain) |
Sepp Ferstl | Josef Ferstl | Alpine skiing | Germany |
Vasily Georgiyevich Fesikov | Sergey Fesikov | Volleyball Swimming | Russia |
Monika Feuersinger (in German) | Therese Feuersinger (in German) | Triathlon | Austria |
| Paulína Fialková, Ivona Fialková | Biathlon | Slovakia |
Giovanni Fidanza | Arianna Fidanza, Martina Fidanza | Cycle sport | Italy |
Tonga Fifita | Tevita Fifita, Alipate Leone | Professional wrestling | Tonga
United States |
| Jaime Fillol, Álvaro Fillol | Tennis | Chile |
Jaime Fillol | Jaime Fillol Jr. | Tennis | Chile |
| Ralph Firman, Natasha Firman | Motorsport | Ireland
United Kingdom ( England) |
| Hans Peter Fischnaller, Dominik Fischnaller | Luge | Italy |
Alastair Fisher | Colin Fisher | Rugby union | United Kingdom ( Scotland) |
| Niamh Fisher-Black, Finn Fisher-Black | Cycle sport | New Zealand |
| Wilson Fittipaldi Júnior, Emerson Fittipaldi | Auto racing | Brazil |
Wilson Fittipaldi Júnior | Christian Fittipaldi | Auto racing | Brazil |
| Pietro Fittipaldi, Enzo Fittipaldi | Auto racing | Brazil |
| Bryan Fletcher, Taylor Fletcher | Nordic combined | United States |
Richard Fliehr | David Fliehr, Ashley Fliehr, Reid Fliehr | Professional wrestling | United States |
| Jostein Flo, Jarle Flo, Tore André Flo | Association football | Norway |
| Lukas Flückiger, Mathias Flückiger | Mountain bike racing | Switzerland |
| Simon Fourcade, Martin Fourcade | Biathlon, cross-country skiing | France |
| Dario Franchitti, Marino Franchitti | Auto racing | United Kingdom ( Scotland) |
Sunil Gavaskar | Rohan Gavaskar | Cricket | India |
Patrick Frary | Roy Bevis | Professional wrestling | United Kingdom ( England) |
Patrick Frary Julia Hamer | Saraya Bevis, Zak Frary | Professional wrestling | United Kingdom ( England) |
Mario Frick | Yanik Frick | Association football | Liechtenstein |
| Alejandro Foglia, Andrea Foglia | Sailing | Uruguay |
John Force | Ashley Force Hood, Brittany Force, Courtney Force | Drag racing | United States |
George Foreman | George Foreman III | Boxing | United States |
Pablo Forlán | Diego Forlán | Association football | Uruguay |
| Richard Fox, Rachel Crosbee | Canoe slalom | United Kingdom ( England) |
Richard Fox, Myriam Fox-Jerusalmi | Jessica Fox, Noemie Fox | Canoe slalom | United Kingdom ( England) France Australia |
Bill France Sr. | Bill France Jr., Jim France | Auto racing | United States |
Bill France Jr. | Brian France, Lesa France Kennedy | Auto racing | United States |
Joe Frazier | Jackie Frazier-Lyde | Boxing | United States |
| Uwe Freimuth, Jörg Freimuth | Track and field | East Germany |
Uwe Freimuth | Rico Freimuth | Track and field | East Germany Germany |
Peter Frischknecht (in French) (grandfather) | Thomas Frischknecht (in French) (father) | Cycle sport | Switzerland |
Thomas Frischknecht (in French) (father) | Andri Frischknecht (in French) (grandson) | Mountain bike racing | Switzerland |
Guy Fritz Kathy May | Taylor Fritz | Tennis | United States |
Christof Frommelt | Willi Frommelt, Paul Frommelt | Cross-country skiing Alpine skiing | Liechtenstein |
| Lado Fumic (in German), Manuel Fumic | Mountain bike racing | Germany |
Gabre Gabric | Eddy Ottoz | Track and field | Croatia
Italy |
Tonči Gabrić | Drago Gabrić, Paškvalina Gabrić | Association football | Croatia |
Marcelo Gallardo | Nahuel Gallardo | Association football | Argentina |
Vittorio Gallinari | Danilo Gallinari | Basketball | Italy |
| Alain Gallopin (in French), Joel Gallopin, Guy Gallopin | Cycle sport | France |
Joel Gallopin | Tony Gallopin | Cycle sport | France |
Bebeto (José Roberto Gama de Oliveira) | Mattheus | Association football | Brazil |
Marco Ganna | Filippo Ganna | Canoe sprint Cycle sport | Italy |
Wayne Gardner | Remy Gardner | Motorcycle racing | Australia |
| Lucy Garner, Grace Garner | Road bicycle racing | United Kingdom ( England) |
| Agnieszka Gąsienica-Daniel, Maryna Gąsienica-Daniel | Alpine skiing | Poland |
| Helena Gąsienica Daniel, Maria Gąsienica Daniel-Szatkowska | Cross-country skiing, alpine skiing | Poland |
| Pau Gasol, Marc Gasol | Basketball | Spain |
| Selina Gasparin, Elisa Gasparin, Aita Gasparin | Biathlon | Switzerland |
| Sebastiano Gastaldi, Nicol Gastaldi | Alpine skiing | Argentina |
| Elene Gedevanishvili, Dimitri Gedevanishvili | Figure skating Alpine skiing | Georgia |
| Judy Geer, Charlotte Geer | Rowing | United States |
Archie Gemmill | Scot Gemmill | Association football | United Kingdom ( Scotland) |
| Jordi Gené, Marc Gené | Auto racing | Spain |
| Riccardo De Gennaro, Giovanni De Gennaro | Canoe slalom | Italy |
Ferdinando Gentile | Alessandro Gentile, Stefano Gentile | Basketball | Italy |
| Francisco Gento, Julio Gento (in Spanish), Antonio Gento (in Spanish) | Association football | Spain |
Aladár Gerevich | Pál Gerevich | Fencing | Hungary |
| Abdelkader Ghezzal, Rachid Ghezzal | Association football | Algeria |
| Philippe Gilbert, Jérôme Gilbert | Cycle sport | Belgium |
Maurice Gillen | Lucien Gillen | Cycle sport | Luxembourg |
| Todd Gilles, Piper Gilles, Alexe Gilles | Ice dancing | United States |
David Gillow | Shara Gillow | Cycle sport | Zimbabwe Australia |
Graeme Gilmore | Matthew Gilmore | Cycle sport | Australia Belgium |
| Néstor Girolami, Franco Girolami | Motorsport | Argentina |
| Dominique Gisin, Marc Gisin, Michelle Gisin | Alpine skiing | Switzerland |
| Ilja Glebov, Jelena Glebova | Figure skating | Estonia |
Gerhard Gleirscher | David Gleirscher, Nico Gleirscher | Luge | Austria |
| Mario Götze, Fabian Götze, Felix Götze | Association football | Germany |
| Francesc Godoy, Anna Godoy | Triathlon | Spain |
| Christine Goitschel, Marielle Goitschel | Alpine skiing | France |
| Carly Gold, Gracie Gold | Figure skating | United States |
| Taylor Gold, Arielle Gold | Snowboarding Half-pipe | United States |
Andrés Gómez | Emilio Gómez | Tennis | Ecuador |
| Héctor González (El Turbo), Raúl González Guzmán (El Pollo) | Association football | Venezuela |
Pullela Gopichand | PVV Lakshmi | Badminton | India |
Tom "Flash" Gordon | Dee Gordon | Baseball | United States |
Alexei Gorshkov | Anastasia Gorshkova | Ice dancing | Russia |
Jean-Marc Gounon | Jules Gounon | Motor racing | France |
Christian Gourcuff | Yoann Gourcuff | Association football | France |
| Torben Grael, Lars Grael | Sailing | Brazil |
Grace family | | Cricket | United Kingdom ( England) |
Gracie family | Scores of family members, spanning four generations in competitive martial arts | Brazilian jiu-jitsu / Mixed martial arts | Brazil
United States |
| François-Cyrille Grange, Jean-Baptiste Grange | Alpine skiing | France |
| Marcel Granollers, Gerard Granollers | Tennis | Spain |
| Horace Grant, Harvey Grant | Basketball | United States |
| Logan Gray, Lauren Gray | Curling | Great Britain ( Scotland) |
Dick Greenwood | Will Greenwood | Rugby union | United Kingdom ( England) |
Ken Griffey Sr. | Ken Griffey Jr. | Baseball | United States |
Reinier Groenendaal | Richard Groenendaal | Cyclo-cross | Netherlands |
Marcus Grönholm | Niclas Grönholm | Rallying | Finland |
| Jannie de Groot, Daan de Groot | Swimming / Cycle sport | Netherlands |
| Christine von Grünigen, Michael von Grünigen | Alpine skiing | Switzerland |
Michael von Grünigen | Noel von Grünigen | Alpine skiing | Switzerland |
Nebojša Gudelj | Nemanja Gudelj, Dragiša Gudelj | Association football | Serbia
Netherlands |
Domingos da Guia | Ademir da Guia | Association football | Brazil |
Matt Guokas Sr. | Matt Guokas | Basketball | United States |
Arnór Guðjohnsen | Eiður Guðjohnsen | Association football | Iceland |
Guerrero family | | Professional wrestling | Mexico
United States |
Ruud Gullit | Maxim Gullit | Association football | Netherlands |
Lourdes Gourriel | Yuli Gurriel, Lourdes Gurriel Jr. | Baseball | Cuba |
| Sondre Guttormsen, Simen Guttormsen | Pole vault | Norway |
Alfie Haaland | Erling Haaland | Association football | Norway |
Rudy Hackett | Daniel Hackett | Basketball | Italy
United States |
| Juan José Haedo, Lucas Sebastián Haedo | Road bicycle racing | Argentina |
| Andreas Hagara, Roman Hagara | Sailing | Austria |
| Bella van der Spiegel-Hage, Keetie van Oosten-Hage, Heleen Hage | Road bicycle racing | Netherlands |
Gheorge Hagi | Ianis Hagi | Association football | Romania |
Sam Hairston | Jerry Hairston Sr., Johnny Hairston | Baseball | United States |
Jerry Hairston Sr. | Jerry Hairston Jr., Scott Hairston | Baseball | United States |
Sejad Halilović | Alen Halilović | Association football | Bosnia and Herzegovina
Croatia |
| Charles Hamelin, François Hamelin | Short track speed skating | Canada |
| Lewis Hamilton, Nicolas Hamilton | Auto racing | United Kingdom ( England) |
| Matt Hamilton, Becca Hamilton | Curling | United States |
| Katsuji Hanada, Mitsuru Hanada | Sumo | Japan |
Mitsuru Hanada | Masaru Hanada, Kōji Hanada | Sumo | Japan |
| Michael Hannah, Tracey Hannah | Downhill mountain biking | Australia |
| John Hansen, Alan Hansen | Association football | United Kingdom ( Scotland) |
Kenneth Hansen Susann Hansen (née Bergvall) | Timmy Hansen, Kevin Hansen | Rallycross | Sweden |
| Lasse Norman Hansen, Louise Hansen | Cycle sport | Denmark |
| Louise Hansson, Sophie Hansson | Swimming | Sweden |
Tim Hardaway | Tim Hardaway Jr. | Basketball | United States |
| Janette Hargin, Mattias Hargin | Alpine skiing | Sweden |
Hart family | | Professional wrestling | Canada
United States
United Kingdom ( England) |
| Robert Harting, Christoph Harting | Track and field | Germany |
| Azat Harutyunyan, Vladimir Harutyunyan (twins) (in Italian) | Diving | Armenia |
Ron Haslam | Leon Haslam | Motorcycle racing | United Kingdom ( England) |
Don Hasselbeck | Matt Hasselbeck, Tim Hasselbeck | American football | United States |
Tony Hateley | Mark Hateley | Association football | United Kingdom ( England) |
Mark Hateley | Tom Hateley | Association football | United Kingdom ( England) |
Dido Havenaar | Mike Havenaar, Nikki Havenaar | Association football | Netherlands
Japan |
| Derek Hawkins, Callum Hawkins | Distance Running | United Kingdom ( Scotland) |
Chuck Hay | David Hay, Mike Hay | Curling | Great Britain ( Scotland) |
| Eden Hazard, Thorgan Hazard, Kylian Hazard | Association football | Belgium |
| David Hearn, Cathy Hearn | Canoe slalom | United States |
Traudl Hecher | Stephan Görgl, Elisabeth Görgl | Alpine skiing | Austria |
| Eric Heiden, Beth Heiden | Speed skating, cycle sport, cross-country skiing | United States |
Beth Heiden | Joanne Reid | Speed skating, cycle sport, cross-country skiing / Biathlon | United States |
| Nick Heidfeld, Sven Heidfeld | Auto racing | Germany |
Wolfgang Heinig Katrin Dörre-Heinig (in German) | Katharina Heinig (in German) | Running | East Germany |
| Carol Heiss, Nancy Heiss | Figure skating | United States |
Hendrick family | | Auto racing | United States |
| Jorik Hendrickx, Loena Hendrickx | Figure skating | Belgium |
Larry Hennig | Curt Hennig | Professional wrestling | United States |
Curt Hennig | Joe Hennig | Professional wrestling | United States |
Javier Hernández Gutiérrez | Javier Hernández | Association football | Mexico |
| Willy Hernangómez, Juan Hernangómez | Basketball | Spain |
| José Herrada, Jesús Herrada | Cycle sport | Spain |
Pedro María Herrera | Ander Herrera | Association football | Spain |
Bryan Herta | Colton Herta | Auto racing | United States |
| Louis Heusghem, Hector Heusghem | Road bicycle racing | Belgium |
| William Hickox, Laurie Hickox | Figure skating | United States |
Luboš Hilgert (father), Štěpánka Hilgertová | Luboš Hilgert (son) Amálie Hilgertová (niece) | Canoe slalom | Czech Republic |
Calvin Hill | Grant Hill | American football / Basketball | United States |
Graham Hill (grandfather) | Damon Hill (father) | Auto racing | United Kingdom ( England) |
Damon Hill (father) | Josh Hill (grandson) | Auto racing | United Kingdom ( England) |
Osamu Higashio | Riko Higashio | Baseball / Golf | Japan |
Jorge Higuaín | Gonzalo Higuaín, Federico Higuaín | Association football | Argentina
France |
| Sergio Hinestrosa, Ruslán Hinestrosa (cousin) | Association football / Basketball | Equatorial Guinea |
| Maria Höfl-Riesch, Susanne Riesch | Alpine skiing | Germany |
| Daniel Hoelgaard, Markus Hoelgaard | Cycle sport | Norway |
Erica Hooker, Bill Hooker | Steve Hooker | Track and field | Australia |
Gino Van Hooydonck (in Dutch), Edwig Van Hooydonck (uncle) | Nathan Van Hooydonck | Road bicycle racing | Belgium |
Tito Horford | Al Horford, Jon Horford | Basketball | Dominican Republic
United States |
| Stefanie Horn, Jacqueline Horn | Canoe slalom | Italy
Germany |
Jill Horstead | Brooke McIntosh, Summer McIntosh | Swimming, Figure skating | Canada |
| Adri van Houwelingen, Jan van Houwelingen | Road bicycle racing | Netherlands |
Gordie Howe | Mark Howe, Marty Howe | Ice hockey | Canada
United States |
Wendy Hoyte | Justin Hoyte, Gavin Hoyte | Track and field / Association football | United Kingdom ( England) |
| Keiffer Hubbell, Madison Hubbell | Ice dancing | United States |
| Norbert Huber, Günther Huber, Arnold Huber, Wilfried Huber | Bobsleigh, Luge | Italy |
| Chris Hughton, Henry Hughton | Association football | Ireland |
Chris Hughton | Cian Hughton | Association football | Ireland |
| Patrick Huisman, Duncan Huisman | Auto racing | Netherlands |
Stefan Hula Sr. | Stefan Hula Jr. | Ski jumping | Poland |
Bobby Hull | Brett Hull | Ice hockey | Canada
United States |
Randy Hundley | Todd Hundley | Baseball | USA |
| James Hunt, David Hunt | Auto racing | United Kingdom ( England) |
| Noel Hunt, Stephen Hunt | Association football | Ireland |
Patrick Hürlimann, Janet Hürlimann | Briar Hürlimann | Curling | Switzerland |
Hur Jae | Heo Ung, Heo Hoon | Basketball | South Korea |
| Claudio Husaín, Darío Husaín | Association football | Argentina |
| Park Hyun-sun, Park Hyun-ha | Synchronised swimming | South Korea |
Gianni Iapichino, Fiona May | Larissa Iapichino | Sport of athletics | Italy
Great Britain ( England) |
| Chiharu Icho, Kaori Icho | Wrestling | Japan |
| Pascal Ickx, Jacky Ickx | Auto racing | Belgium |
Jacky Ickx | Vanina Ickx | Auto racing | Belgium |
| Luka Ilić, Ivan Ilić | Association football | Serbia |
Danny Ildefonso | Sean Ildefonso, Dave Ildefonso, Sofia Ildefonso | Basketball / Volleyball | Philippines |
Paul Ince | Tom Ince | Association football | United Kingdom ( England) |
| Miguel Induráin, Prudencio Induráin | Road bicycle racing | Spain |
Gjert Ingebrigtsen (in Norwegian) | Kristoffer Ingebrigtsen, Martin Ingebrigtsen Henrik Ingebrigtsen, Filip Ingebrigtsen, Jakob Ingebrigtsen, Ingrid Ingebrigtsen | Middle-distance running | Norway |
| Filippo Inzaghi, Simone Inzaghi | Association football | Italy |
Ted Irvine | Christopher Irvine | Ice hockey / Professional wrestling | Canada
United States |
Sadao Iwahira (grandfather) | Wataru Onami [ja], Minato Otami, Atsushi Onami | Sumo | Japan |
| Gorka Izagirre, Ion Izagirre | Road bicycle racing | Spain |
William Jackson | Laurence Jackson | Curling | United Kingdom ( Scotland) |
Liv Jagge-Christiansen | Finn Christian Jagge | Alpine skiing | Norway |
LeBron James | Bronny James | Basketball | United States |
| Rachel James, Becky James | Cycle sport | United Kingdom ( Wales) |
| Reece James, Lauren James | Association football | United Kingdom ( England) |
| Jan Janků, Tomáš Janků | Track and field | Czech Republic |
Boban Janković | Vladimir Janković | Basketball | Serbia
Greece |
| Britt Janyk, Michael Janyk | Alpine skiing | Canada |
Ned Jarrett | Glenn Jarrett, Dale Jarrett | Auto racing | United States |
Glenn Jarrett | Jason Jarrett | Auto racing | United States |
| Isgandar Javadov, Fizuli Javadov | Association football | Azerbaijan |
Fizuli Javadov | Vagif Javadov, | Association football | Azerbaijan |
Robert Jaworski | Robert Jaworski Jr. | Basketball | Philippines |
Charles Jenkins Sr. | Charles "Chip" Jenkins | Track and field | United States |
| Hayes Alan Jenkins, David Jenkins | Figure skating | United States |
Roland Jentsch, Christiane Jentsch | Daniela Jentsch, Analena Jentsch | Curling | Germany |
| Aatef Jenyat, Amro Jenyat | Association football | Syria |
| Pooh Jeter, Carmelita Jeter | Basketball Track and field | United States |
Leif Johansson | Joachim Johansson | Tennis | Sweden |
Brandy Johnson | Sydney Johnson-Scharpf | Gymnastics | United States |
Rocky Johnson | Dwayne Johnson | Wrestling | United States
Canada |
| Sammy Johnston, Allan Johnston | Association football | United Kingdom ( Scotland) |
Allan Johnston | Max Johnston | Association football | United Kingdom ( Scotland) |
| Craig Joiner, Charline Joiner | Rugby union, cycle sport | Great Britain ( Scotland) |
| Natasha Jonas, Nikita Parris | Boxing, association football | Great Britain ( England) |
Stan Jones | Alan Jones | Auto racing | Australia |
Alan Jones | Christian Jones | Auto racing | Australia |
| Alan Jones, Eifion Jones | Cricket | United Kingdom ( Wales) |
| Caldwell Jones, Charles Jones, Major Jones, Will Jones | Basketball | United States |
| Jon Jones, Arthur Jones, Chandler Jones | Mixed martial arts / American football | United States |
Louise Jones | Hayley Jones | Cycle sport | United Kingdom ( Wales) |
Popeye Jones | Seth Jones, Caleb Jones | Basketball / Ice hockey | United States |
Michael Jordan | Jeffrey Jordan, Marcus Jordan | Basketball | United States |
Mike Jordan | Andrew Jordan | Auto racing | United Kingdom ( England) |
| Ronald Joseph, Vivian Joseph | Figure skating | United States |
| Sarah Josephson, Karen Josephson | Synchronized swimming | United States |
| Al Joyner, Jackie Joyner-Kersee | Track and field | United States |
Luis Juncos, Valentina Aracil | Natalie Juncos | Swimming Association football | Argentina
United States |
Marat Kabayev | Alina Kabaeva | Association football / Rhythmic gymnastics | Russia |
| Kaká, Digão | Association football | Brazil |
Anders Kallur | Susanna Kallur, Jenny Kallur | Ice hockey Track and field | Sweden |
Tadashige Kamakari | Yukio Naya, Kōnosuke Naya | Sumo Professional wrestling | Japan |
| Mujinga Kambundji, Ditaji Kambundji | Sprint (running) | Switzerland |
Vasily Karasev | Sergey Karasev | Basketball | Russia |
Ann-Marie Karlsson | Frida Karlsson | Cross-country skiing | Sweden |
Dinesh Karthik | Dipika Pallikal Karthik | Cricket / Squash | India |
| Rob Kearney, Dave Kearney | Rugby union | Ireland |
Frederick Keeping | Michael Keeping | Cycle sport Association football | United Kingdom ( England) |
Erwin Keller | Carsten Keller, Andreas Keller | Field hockey | Germany |
Carsten Keller | Natascha Keller, Florian Keller | Field hockey | Germany |
Shannon Kelley Mary Lou Retton | McKenna Kelley | American football / Gymnastics | United States |
John B. Kelly Sr. | John B. Kelly Jr. | Rowing | United States |
Peter Kennaugh (cyclist father), Jackie Kennaugh (Time trial cycling mother) | Peter Kennaugh, Tim Kennaugh | Road bicycle racing | United Kingdom ( Isle of Man) |
| Sinead Kerr, John Kerr | Figure skating | Great Britain ( Scotland) |
Mohammad Khadem | Amir Reza Khadem, Rasoul Khadem | Wrestling | Iran ( Persia) |
| Sami Khedira, Rani Khedira | Association football | Germany |
| Kim Yeong-mi, Kim Kyeong-ae | Curling | South Korea |
Steve Kinser, Randy Kinser | Kraig Kinser | Auto racing | United States |
Erny Kirchen | Kim Kirchen | Cycle sport | Luxembourg |
| Emanuel Kišerlovski, Robert Kišerlovski | Road bicycle racing | Croatia |
Bára Skaale Klakstein | Eyðvør Klakstein | Association football | Faroe Islands |
| Vitali Klitschko, Wladimir Klitschko | Boxing | Ukraine |
| Markis Kido, Bona Septano, Pia Zebadiah Bernadet | Badminton | Indonesia |
Dzintar Klavan | Ragnar Klavan | Association football | Estonia |
Kenneth Kluivert (grandfather) | Patrick Kluivert (father) | Association football | Suriname
Netherlands |
Patrick Kluivert (father) | Justin Kluivert (grandson) | Association football | Netherlands |
Gerrie Knetemann | Roxane Knetemann | Road bicycle racing | Netherlands |
| Junshirō Kobayashi, Ryoyu Kobayashi | Ski jumping | Japan |
Martin Koeman | Ronald Koeman, Erwin Koeman | Association football | Netherlands |
| Elias Kolega, Samuel Kolega | Alpine skiing | Croatia |
| Arouna Koné, Bakari Koné | Association football | Ivory Coast |
Valery Konovalov (in Lithuanian), Laima Zilporytė | Ignatas Konovalovas | Cycle sport | Russia Lithuania |
Wolfgang Konrad | Patrick Konrad | Middle-distance running / Cycle sport | Austria |
| John Konrads, Ilsa Konrads | Swimming | Australia |
Petr Korda Regina Rajchrtová | Jessica Korda, Nelly Korda, Sebastian Korda | Tennis / Golf | Czechoslovakia
Czech Republic
United States |
Ante Kostelić | Ivica Kostelić, Janica Kostelić | Handball, alpine skiing | Croatia |
| Carolina Kostner, Simon Kostner | Figure skating Ice hockey | Italy |
| Jakub Kot, Maciej Kot | Ski jumping | Poland |
| Niko Kovač, Robert Kovač | Association football | Croatia |
| Richard Krajicek, Michaëlla Krajicek | Tennis | Netherlands |
Zlatko Kranjčar | Niko Kranjčar | Association football | Croatia |
| Michel Kreder, Raymond Kreder | Road bicycle racing | Netherlands |
Roman Kreuziger Sr. | Roman Kreuziger | Road bicycle racing | Czech Republic |
| Alison Kreviazuk, Lynn Kreviazuk, Cheryl Kreviazuk | Curling | Canada |
Rúnar Kristinsson | Rúnar Alex Rúnarsson | Association football | Iceland |
Tommy Kristoffersson | Johan Kristoffersson | Auto racing | Sweden |
Aleksey Kudryavtsev | Yana Kudryavtseva | Swimming / Gymnastics | Soviet Union ( Russian SFSR)
Russia |
| Karin Künzle, Christian Künzle | Figure skating | Switzerland |
| Anastasiya Kuzmina, Anton Shipulin | Biathlon | Slovakia
Russia |
| Abdul Kader Kardaghli, Ahmed Kurdughli | Association football | Syria |
Kazuhiro Kuroda | Hiroki Kuroda | Baseball | Japan |
| Karen Kwan, Michelle Kwan | Figure skating | United States |
| Mathieu Ladagnous, Caroline Ladagnous | Cycle sport Rugby union | France |
| Jean-Philippe Lamoureux, Jacques Lamoureux, Mario Lamoureux, Jocelyne Lamoureux, Monique Lamoureux | Ice hockey | United States |
Frank Lampard Sr. | Frank Lampard | Association football | United Kingdom ( England) |
Santiago Lange | Yago Lange, Klaus Lange | Sailing | Argentina |
| Nicolás Lapentti, Giovanni Lapentti | Tennis | Ecuador |
Barry Larkin | Shane Larkin | Baseball / Basketball | United States |
Lars Larsson | Robin Larsson | Rallycross | Sweden |
Niki Lauda | Mathias Lauda | Motorsport | Austria |
Finn Laudrup | Michael Laudrup, Brian Laudrup | Association football | Denmark |
Michael Laudrup | Mads Laudrup, Andreas Laudrup | Association football | Denmark |
| Renaud Lavillenie, Valentin Lavillenie | Track and field | France |
Alan Lawson | Rory Lawson | Rugby union | United Kingdom ( Scotland) |
Eddie Laure | EJ Laure, Eya Laure | Basketball / Volleyball | Philippines |
| Joe Laurinaitis, Marc Laurinaitis, John Laurinaitis | Professional wrestling | United States |
Joe Laurinaitis | James Laurinaitis | Professional wrestling / American football | United States |
Hervé Leclerc | Charles Leclerc, Arthur Leclerc | Auto sport | Monaco |
Yvon Ledanois | Kévin Ledanois | Cycle sport | France |
Walter Ledgard Sr. | Walter Ledgard Jr. | Swimming | Peru |
Walter Ledgard Jr. | Tony Ledgard | Swimming / Cycle sport | Peru |
Gerald Lee, Sr. | Gerald Lee, Jr. | Basketball | United States
Finland |
| Leron Lee, Leon Lee | Baseball | United States |
Leon Lee | Derrek Lee | Baseball | United States |
Lee Jong-beom | Lee Jung-hoo | Baseball | South Korea |
| Al Leiter, Mark Leiter | Baseball | United States |
Mark Leiter | Mark Leiter Jr. | Baseball | United States |
| Jerko Leko, Ivan Leko | Association football | Croatia |
Lela | Richarlyson, Alecsandro | Association football | Brazil |
Irina Lenskiy | Olga Lenskiy | Track and field | Israel |
| Andreas Linger, Wolfgang Linger | Luge | Austria |
Peter Litchfield | Max Litchfield, Joe Litchfield | Association football / Swimming | United Kingdom ( England) |
Olavi Litmanen, Liisa Litmanen | Jari Litmanen | Association football | Finland |
Valeri Liukin Anna Kotchneva | Nastia Liukin | Gymnastics | Soviet Union ( Kazakh SSR)
Soviet Union ( Russian SFSR)
United States |
| José Luis Llorente, Paco Llorente, Toñin Llorente (in Spanish), Julio Llorente | Basketball / Association football | Spain |
José Luis Llorente | Sergio Llorente, Juan Llorente | Basketball | Spain |
Paco Llorente | Marcos Llorente | Association football | Spain |
| Hugo Lloris, Gautier Lloris | Association football | France |
Clive Lloyd | Jason Clive Lloyd | Cricket, association football | West Indies Guyana |
Howie Long | Chris Long, Kyle Long | American football | United States |
David Longstaff | Sean Longstaff, Matty Longstaff | Ice hockey / Association football | United Kingdom ( England) |
José Antonio Lopetegui (in Spanish) | Julen Lopetegui | Harri-jasotzaileak Association football | Spain |
| Erazem Lorbek, Domen Lorbek, Klemen Lorbek | Basketball | Slovenia |
| Lene Løseth, Nina Haver-Løseth, Mona Løseth | Alpine skiing | Norway |
| Cristiano Lucarelli, Alessandro Lucarelli | Association football | Italy |
| Luisão, Alex Silva | Association football | Brazil |
| Tobias Ludvigsson, Fredrik Ludvigsson | Road bicycle racing | Sweden |
| Ron Lugbill, Jon Lugbill | Canoe slalom | United States |
| Leila Luik, Liina Luik, Lily Luik | Long-distance running | Estonia |
Henrik Lundgaard | Christian Lundgaard | Auto racing | Denmark |
Arie Luyendyk | Arie Luyendyk Jr. | Auto racing | Netherlands |
| Allan Lyburn, William Lyburn | Curling | Great Britain ( Scotland)
Canada |
Kevin Lyles | Noah Lyles, Josephus Lyles | Track and field | United States |
| Patricio Mac Allister, Carlos Mac Allister | Association football | Argentina |
Carlos Mac Allister | Kevin Mac Allister, Francis Mac Allister, Alexis Mac Allister | Association football | Argentina |
Monica MacDonald | Brendan Kerry, Chantelle Kerry | Figure skating | Australia |
Laurent Madouas | Valentin Madouas | Road bicycle racing | France |
Glenn Magnusson | Kim Magnusson | Road bicycle racing | Sweden |
Jan Magnussen | Kevin Magnussen | Auto racing | Denmark |
Pat Mahomes | Patrick Mahomes | Baseball / American football | United States |
| Sebastian Mai, Lars Lukas Mai | Association football | Germany |
| Hermann Maier, Alexander Maier | Alpine skiing Snowboarding | Austria |
Otto Maier Zeuner (in Catalan) | Enrique Maier, Maria Isabel Maier | Association football Tennis | Germany Spain |
| Jean Majerus, Jacques Majerus | Cycle sport | Luxembourg |
Cesare Maldini | Paolo Maldini | Association football | Italy |
Karl Malone | Cheryl Ford, Demetress Bell | Basketball / American football | United States |
Yulia Berberian-Maleeva | Manuela Maleeva, Katerina Maleeva, Magdalena Maleeva | Tennis | Bulgaria |
Jean-Luc Manaudou, Olga Schippers | Nicolas Manaudou [fr], Laure Manaudou, Florent Manaudou | Handball / Badminton / Swimming | France
Netherlands |
| Nick Mangold, Holley Mangold | American football / Weightlifting | United States |
Archie Manning | Peyton Manning, Eli Manning | American football | United States |
| Predrag Manojlović, Nenad Manojlović | Water polo | Serbia |
Nigel Mansell | Leo Mansell, Greg Mansell | Auto racing Road bicycle racing | United Kingdom ( England, Isle of Man) |
| Diego Maradona, Hugo Maradona, Raúl Maradona | Association football | Argentina |
Diego Maradona | Diego Sinagra | Association football / Beach soccer | Argentina
Italy |
Xavier Marchand, Céline Bonnet | Léon Marchand | Swimming | France |
Kevork Mardikian | Mardik Mardikian | Association football | Syria |
| Anne Kristi Marken, Ingeborg Helen Marken | Cross-country skiing, alpine skiing | Norway |
Dmitri Markov | Oleg Markov | Pole vault / Australian rules football | Belarus Australia |
| Barry Markus, Kelly Markus | Cycle sport | Netherlands |
| Riejanne Markus, Femke Markus | Cycle sport | Netherlands |
| Marc Márquez, Álex Márquez | Motorcycle racing | Spain |
Alvin Martin | David Martin, Joe Martin | Association football | United Kingdom ( England) |
Neil Martin | Dan Martin | Cycle sport | Great Britain ( England) Ireland |
Mariano Martínez | Miguel Martinez, Yannick Martinez | Cycle sport | France |
Miguel Martinez | Lenny Martinez | Cycle sport | France |
| Pierluigi Martini, Oliver Martini | Motorsport | Italy |
| Matteo Marsaglia, Francesca Marsaglia | Alpine skiing | Italy |
John Barasa Masai | Moses Ndiema Masai, Linet Masai, Dennis, Ndiema and Magdaline | Track and field | Kenya |
Greg Massialas | Alexander Massialas | Fencing | Greece United States |
| Matthew Massie, Nicholas Massie | Professional wrestling Tag team | United States |
| Mario Matt, Andreas Matt, Michael Matt | Alpine skiing / Ski cross / Alpine skiing | Austria |
| Barbara Matić, Brigita Matić | Judo | Croatia |
Maria Mattheussens-Fikkers | Marieke Veenhoven-Mattheussens | Field hockey | Netherlands |
Bruce Matthews | Kevin Matthews, Jake Matthews | American football | United States |
Clay Matthews Sr. | Clay Matthews Jr., Bruce Matthews | American football | United States |
Clay Matthews Jr. | Clay Matthews III, Casey Matthews | American football | United States |
Mavuba Mafuila | Rio Mavuba | Association football | Zaire
France |
Martin Max | Philipp Max | Association football | Germany |
Butch May | Misty May-Treanor | Volleyball | United States |
Helmut Mayer | Matthias Mayer | Alpine skiing | Austria |
Matthew Maynard | Tom Maynard | Cricket | England
Wales |
Floyd Mayweather Sr. | Floyd Mayweather Jr. | Professional boxing | United States |
Mazinho | Thiago, Rafinha | Association football | Brazil
Spain |
Andy McCall | Stuart McCall | Association football | United Kingdom ( Scotland) |
| John McEnroe, Patrick McEnroe | Tennis | United States |
McLean family | | Rugby union | Australia |
John McGeady | Aiden McGeady | Association football | United Kingdom ( Scotland)
Ireland |
Felix McGrath | Atle Lie McGrath | Alpine skiing | United States
Norway |
| Mark McGwire, Dan McGwire | Baseball / American football | United States |
Shirley McIntosh, Donald McIntosh | Jennifer McIntosh, Seonaid McIntosh | Shooting sports | Great Britain ( Scotland) |
Ron McKeon | Emma McKeon, David McKeon | Swimming | Australia |
| Taylor McKeown, Kaylee McKeown | Swimming | Australia |
| Steve McKinney, Seth McKinney | American football | United States |
McMahon family | | Professional wrestling | United States |
Stuart McManus | Sara McManus | Association football / Curling | United Kingdom ( Scotland)
Sweden |
Hammy McMillan | Hammy McMillan Jr. | Curling | Great Britain ( Scotland) |
| John McNally, Caty McNally | Tennis | United States |
Jimmy McRae | Alister McRae, Colin McRae | Rallying | United Kingdom ( Scotland) |
| Loïc Meillard, Mélanie Meillard | Alpine skiing | Switzerland |
| Kerrie Meares, Anna Meares | Cycle sport | Australia |
| Roger Mears, Rick Mears | Auto racing | United States |
Roger Mears | Casey Mears | Auto racing | United States |
Rick Mears | Clint Mears | Auto racing | United States |
Azmi Mohamed Megahed | Amir Azmy | Volleyball / Association football | Egypt |
| Jürgen Melzer, Gerald Melzer | Tennis | Austria |
| Haxhi Mema, Ali Mema, Osman Mema | Association football | Albania |
Ali Mema | Ardian Mema | Association football | Albania |
Haxhi Mema | Sulejman Mema | Association football | Albania |
Andrés Mendieta | Gaizka Mendieta | Association football | Spain |
Dino Meneghin | Andrea Meneghin | Basketball | Italy |
Eddy Merckx | Axel Merckx | Cycle sport | Belgium |
Terry Metcalf | Eric Metcalf | American football | United States |
| Cameron Meyer, Travis Meyer | Cycle sport | Australia |
| Jonathan Midol, Bastien Midol | Ski cross | France |
Borislav Mihaylov Maria Petrova | Nikolay Mihaylov | Association football / Rhythmic gymnastics | Bulgaria |
Biser Mihaylov | Borislav Mihaylov or Borislav Mihaylov (in Bulgarian), Ruslan Mihaylov (in Bulgarian) | Association football | Bulgaria |
Juho Mikkonen | Kerttu Niskanen | Cross-country skiing | Finland |
Vladimir Milić | Marko Milič | Track and field / Basketball | Yugoslavia ( Serbia)
Slovenia |
Nikola Milinković, Milana Savić | Sergej Milinković-Savić, Vanja Milinković-Savić | Association football / Basketball | Serbia |
| Lotte Miller, Hanna Miller, William Miller (triplets) (in Norwegian) | Triathlon / Taekwondo / Volleyball | Norway |
| Darrell Miller, Reggie Miller, Cheryl Miller | Baseball / Basketball | United States |
Lennox Miller | Inger Miller | Sprint (running) | Jamaica
United States |
| Diego Milito, Gabriel Milito | Association football | Argentina |
| Mark Militano, Melissa Militano | Figure skating | United States |
Nicola Minali | Riccardo Minali | Road bicycle racing | Italy |
| Rosi Mittermaier, Evi Mittermaier | Alpine skiing | Germany |
| Yasutoshi Miura, Kazuyoshi Miura | Association football | Japan |
| Yoshinobu Miyake, Yoshiyuki Miyake | Olympic weightlifting | Japan |
Yoshiyuki Miyake | Hiromi Miyake | Olympic weightlifting | Japan |
| Gilberto, Nélio, Nilde | Association football | Brazil
El Salvador |
Dragan Mladenović | Kristina Mladenovic | Handball / Tennis | Yugoslavia
France |
Hamlet Mkhitaryan | Henrikh Mkhitaryan | Association football | Armenia |
| Danny Moir, Scott Moir | Ice dancing | Canada |
| Manfred Mölgg, Manuela Mölgg | Alpine skiing | Italy |
| Francesco Molinari, Edoardo Molinari | Golf | Italy |
| Maria Monko, Ksenia Monko | Ice dancing | Russia |
Aston Moore | Jonathan Moore | Track and field | Jamaica
United Kingdom ( England) |
| Enzo Moser, Aldo Moser, Francesco Moser | Cycle sport | Italy |
Diego Moser | Moreno Moser, Leonardo Moser, Matteo Moser | Cycle sport | Italy |
Francesco Moser | Ignazio Moser, | Cycle sport | Italy |
| Stirling Moss, Pat Moss | Auto racing | United Kingdom ( England) |
Charly Mottet | Eva Mottet | Road bicycle racing | France |
| Mbo Mpenza, Émile Mpenza | Association football | Belgium |
Mitsuhiro Momota | Mitsuo Momota, Yoshihiro Momota | Professional wrestling / Sumo | Japan
North Korea |
Roger Moran | Scott Moran | Hillclimbing | United Kingdom ( England) |
Old Tom Morris | Young Tom Morris | Golf | United Kingdom ( Scotland) |
Josef Mucha | Karolína Muchová | Association football / Tennis | Czechoslovakia
Czech Republic |
| Shabazz Muhammad, Asia Muhammad | Basketball / Tennis | United States |
| Elena Muhhina, Sergei Muhhin | Figure skating | Estonia |
| Paul Mullen, Eoin Mullen | Rugby union, cycle sport | United States
Ireland |
| Cathy Muller, Yvan Muller | Motorsport | France |
| Nancy Murdoch, Neil Murdoch, David Murdoch | Curling | Great Britain ( Scotland) |
Gordon Muirhead | Glen Muirhead, Eve Muirhead, Thomas Muirhead | Curling | United Kingdom ( Scotland) |
| Dino Murić, Edo Murić | Basketball | Slovenia |
| Satsuki Muramoto, Kana Muramoto | Figure skating | Japan |
Shigenobu Murofushi | Koji Murofushi, Yuka Murofushi | Track and field | Japan |
Jay Murphy | Erik Murphy, Alex Murphy | Basketball | United States
Finland
France |
Judy Erskine Murray | Jamie Murray, Andy Murray | Tennis | United Kingdom ( Scotland) |
| Rosamund Musgrave, Andrew Musgrave | Cross-country skiing | United Kingdom ( England) |
Farhat Mustafin | Aliya Mustafina | Wrestling / Gymnastics | Soviet Union ( Russian SFSR)
Russia |
| Yohan M'Vila, Yann M'Vila | Association football | Democratic Republic of the Congo
France |
| Aldo Nadi, Nedo Nadi | Fencing | Italy |
| Oliver Naesen, Lawrence Naesen | Road bicycle racing | Belgium |
Shigeo Nagashima | Kazushige Nagashima | Baseball | Japan |
Sándor Nagy Gabriella Remport | Zsuzsanna Nagy | Ice dancing | Hungary |
| Yoshio Nakamura, Yukimasa Nakamura, Kenzo Nakamura | Judo | Japan |
Annet Nakimbugwe | Hasifah Nassuna | Association football | Uganda |
| Steve Nash, Martin Nash | Basketball / Association football | Canada |
| Damien Nazon, Jean-Patrick Nazon | Road bicycle racing | France |
Phil Neal | Ashley Neal | Association football | United Kingdom ( England) |
Gerhardt Neef | Melanie Neef | Association football / athletics | West Germany
Great Britain ( Scotland) |
| John Nemechek, Joe Nemechek | Auto racing | United States |
| Angelika Neuner, Doris Neuner | Luge | Austria |
Christian Neureuther, Rosi Mittermaier | Felix Neureuther | Alpine skiing | Germany |
Neville Neville | Gary Neville, Phil Neville, Tracey Neville | Cricket / Association football / Netball | United Kingdom ( England) |
Adrian Newey | Harry Newey | Auto racing | United Kingdom ( England) |
| Vincenzo Nibali, Antonio Nibali | Road bicycle racing | Italy |
| Bryden Nicholas, Ella Nicholas | Canoe slalom | Cook Islands |
| Chris Nicholson, Andrew Nicholson | Speed skating | New Zealand |
| James Nicolson, Gavin Nicolson, Skye Nicolson | Boxing | Australia |
Benny Nielsen | Mie Nielsen | Swimming | Denmark |
| Aldo de Nigris, Antonio de Nigris | Association football | Mexico |
Chanoch Nissany | Roy Nissany | Auto racing | Israel |
Zacharie Noah | Yannick Noah | Association football / Tennis | Cameroon
France |
Yannick Noah | Joakim Noah | Tennis / Basketball | France
United States |
Gifton Noel-Williams | Dejon Noel-Williams | Association football | United Kingdom ( England)
Grenada |
| Rodrigo Nogueira, Rogério Nogueira | Mixed martial arts / Boxing | Brazil |
Katsuya Nomura | Katsunori Nomura | Baseball | Japan |
| Mathias Norsgaard, Emma Cecilie Norsgaard | Cycle sport | Denmark |
| Petter Northug, Tomas Northug, Even Northug | Cross-country skiing | Norway |
| Jordan Norwood, Gabe Norwood | American football / Basketball | United States Philippines |
Chucks Nwoko and Udo Nwoko | Kyrian Nwoko | Association football | Malta |
Sven Nys | Thibau Nys | Cycle sport | Belgium |
| Noh Seon-yeong, Noh Jin-kyu | Speed skating | South Korea |
Helga Nowitzki | Dirk Nowitzki, Silke Nowitzki | Basketball | Germany |
| Hanna Öberg, Elvira Öberg | Biathlon | Sweden |
Emerson Obiena | Ernest John Obiena | Pole vault | Philippines |
Jim Ochowicz, Sheila Young | Elli Ochowicz | Cycle sport, speed skating | United States |
Tommy O'Connell | Mike O'Connell, Tim O'Connell | American football Ice hockey | United States |
| Sam O'Dea, Ben O'Dea | Beach volleyball | New Zealand |
| Gary O'Donovan, Paul O'Donovan | Rowing | Ireland |
Hans Erik Ødegaard | Martin Ødegaard | Association football | Norway |
| Kenji Ogiwara, Tsugiharu Ogiwara | Skiing | Japan |
| Christine Ohuruogu, Victoria Ohuruogu | Sprint (running) | Great Britain ( England) |
Kristjan Oja | Regina Oja | Biathlon | Estonia |
| Jamie Oleksiak, Penny Oleksiak | Ice hockey / Swimming | Canada |
Brian Oliver | J. P. Tokoto | Basketball | United States |
| Ivo Oliveira, Rui Oliveira | Cycle sport | Portugal |
Sead Omeragic | Adnan Omeragic (in Spanish) | Basketball Volleyball | Yugoslavia Spain |
| Iffy Onuora, Anyika Onuora | Association football / Athletics | Great Britain ( Scotland) Great Britain ( England) |
Patrick Ortlieb | Nina Ortlieb | Alpine skiing | Austria |
| Patrick O'Shaughnessy, Daniel O'Shaughnessy | Association football | Finland |
Ivica Osim | Amar Osim | Association football | Bosnia and Herzegovina |
Tatyana Ovechkina | Alexander Ovechkin | Basketball / Ice hockey | Soviet Union Russia |
| Steve Ovett, Nick Ovett | Middle-distance running / Luge | Great Britain ( England) |
Steve Ovett | Freddy Ovett | Middle-distance running / Cycle sport | Great Britain ( England)
Australia |
Jonathan Palmer | Jolyon Palmer, Will Palmer | Auto racing | United Kingdom ( England) |
Ronak Pandit | Heena Sidhu | Shooting | India |
| Aurélien Paret-Peintre, Valentin Paret-Peintre | Road bicycle racing | France |
| Park Seung-hi, Park Se-yeong | Speed skating | South Korea |
Bobby Parks | Bobby Ray Parks Jr., Bobby Mark Parks | Basketball | United States Philippines |
Yves Parlier | Nicolas Parlier (in French) | Sailing | France |
Alex Parnov | Vicky Parnov, Liz Parnov | Pole vault | Australia |
Rafael Pascual | Rafael Pascual Jr. | Volleyball | Spain |
| Irfan Pathan, Yusuf Pathan | Cricket | India |
Joseph Patrick | Lester Patrick, Frank Patrick | Ice Hockey | Canada |
Lester Patrick | Lynn Patrick, Muzz Patrick | Ice Hockey | Canada |
Lynn Patrick | Craig Patrick, Glenn Patrick, Lester Lee Patrick | Ice Hockey | Canada |
Muzz Patrick | Dick Patrick | Ice Hockey | Canada |
Stephen Patrick | Steve Patrick, James Patrick | Ice hockey | Canada |
Alvin Patrimonio | Anna Christine Patrimonio, Anna Clarice Patrimonio | Basketball / Tennis | Philippines |
John Paul Sr. | John Paul Jr. | Motorsport | United States |
| María Paulina Pérez, Paula Andrea Pérez (twins) | Tennis | Colombia |
| Eric, Gordon and Julian Pearce | Field hockey | Australia |
Natalya Pechonkina | Viktor Chistiakov | Track and field | Russia |
Dondinho | Pelé | Association football | Brazil |
Pelé | Edinho | Association football | Brazil |
| Francis Pélissier, Henri Pélissier, Charles Pélissier | Cycle sport | France |
| Mauricio Pellegrino, Maximiliano Pellegrino | Association football | Argentina |
Daryl Perkins | Shane Perkins | Track cycling | Australia
Russia |
| Silvia Persico, Davide Persico | Cycle sport | Italy |
Nel Pessoa | Rodrigo Pessoa | Equestrianism | Brazil
France |
Wolfgang Peters, Ulrich Peters | Violetta Oblinger-Peters | Canoe slalom | Germany |
Yevgeny Petrashov | Denis Petrashov | Swimming | Kyrgyzstan |
| Viktor Petrenko, Vladimir Petrenko | Figure skating | Soviet Union ( Ukrainian SSR) |
| Aleksandar Petrović, Dražen Petrović | Basketball | Croatia |
Lee Petty | Richard Petty | Auto racing | United States |
Richard Petty | Kyle Petty | Auto racing | United States |
Kyle Petty | Adam Petty | Auto racing | United States |
Anne, Princess Royal (Anne Phillips) | Zara Tindall | Equestrianism | United Kingdom ( England) |
Bum Phillips | Wade Phillips | American football | United States |
Greg Phillips | Erin Phillips | Australian rules football (both), basketball (Erin)[3] | Australia |
Connie Carpenter-Phinney, Davis Phinney | Taylor Phinney | Road bicycle racing | United States |
| Geeta Phogat, Babita Kumari | Wrestling | India |
| Franck Piccard, Ian Piccard, Leila Piccard, Ted Piccard, Jeff Piccard | Alpine skiing | France |
Jean Pickering | Shaun Pickering | Track and field | United Kingdom ( England) |
Peter Pieters | Roy Pieters, Amy Pieters | Road bicycle racing | Netherlands |
| Gojko Pijetlović, Duško Pijetlović | Water polo | Serbia |
| Daria Pikulik, Wiktoria Pikulik | Racing cyclist | Poland |
Brian Pillman | Brian Pillman Jr. | American football Professional wrestling | United States |
| Walter Pirinoli, Marco Pirinoli | Sailing | Italy |
Nelson Piquet | Nelson Piquet Jr., Pedro Piquet | Auto racing | Brazil
Germany |
| Claudio Pizarro, Diego Pizarro | Association football | Peru |
| Miles Plumlee, Mason Plumlee, Marshall Plumlee | Basketball | United States |
| Paul Pogba, Mathias Pogba, Florentin Pogba | Association football | France
Guinea |
| Susan Polgar, Sofia Polgar, Judit Polgár | Chess | Hungary |
| Dmitry Polyanski, Igor Andreyevich Polyanski | Triathlon | Russia |
| Boonsak Ponsana, Salakjit Ponsana | Badminton | Thailand |
Jyrki Ponsiluoma | Martin Ponsiluoma | Cross-country skiing, biathlon | Sweden |
Mart Poom | Markus Poom | Association football | Estonia |
Jean-Paul van Poppel, Leontine van der Lienden | Boy van Poppel, Danny van Poppel | Road bicycle racing | Netherlands |
| Nicolas Portal, Sébastien Portal | Cycle sport | France |
| Miguel Porteous, Nico Porteous | Freestyle skiing | New Zealand |
| Tiffany Porter, Cindy Ofili | Track and field | United Kingdom |
| Kristaps Porziņģis, Jānis Porziņģis | Basketball | Latvia |
| Peter Prevc, Domen Prevc, Cene Prevc | Ski jumping | Slovenia |
Markus Prock | Hannah Prock | Luge | Austria |
| Annemarie Moser-Pröll, Cornelia Pröll | Alpine skiing | Austria |
| John Paine, Sumner Paine | Shooting sports | United States |
Olivier Panis | Aurélien Panis | Auto racing | France |
Jiří Prskavec | Jiří Prskavec | Canoe slalom | Czech Republic |
Alain Prost | Nico Prost | Auto racing | France |
| Pablo Punyed, Renato Punyed | Association football | El Salvador
Nicaragua
United States |
| Joachim Puchner, Mirjam Puchner | Alpine skiing | Austria |
Pilo Pumaren | Derrick Pumaren, Franz Pumaren & Dindo Pumaren | Basketball | Philippines |
Eigil Ramsfjell | Maia Ramsfjell, Magnus Ramsfjell | Curling | Norway |
Maria Rosa Quario | Federica Brignone | Alpine skiing | Italy |
Derek Quinnell | Scott Quinnell, Craig Quinnell, Gavin Quinnell | Rugby | United Kingdom ( Wales) |
| Nairo Quintana, Dayer Quintana | Road bicycle racing | Colombia |
| Agnieszka Radwańska, Urszula Radwańska | Tennis | Poland |
| Andreas Raelert, Michael Raelert | Triathlon | Germany |
| Rafael, Fabio | Association football | Brazil |
Bobby Rahal | Graham Rahal | Auto racing | United States |
Bernard | Phil Rajzman | Volleyball / Surfing | Brazil |
Munaf Ramadan | Ammar Ramadan | Association football | Syria |
| Strahinja Rašović, Viktor Rašović | Water polo | Serbia |
| Daniele Ratto, Rossella Ratto | Cycle sport | Italy |
Ken Read, Lynda Robbins | Erik Read, Jeffrey Read | Alpine skiing | Canada |
Harry Redknapp | Jamie Redknapp | Association football | United Kingdom ( England) |
| Cathy Reed, Chris Reed, Allison Reed | Ice dancing | United States Japan |
| Tomas Ress, Kathrin Ress | Basketball | Italy |
Claudio Reyna, Danielle Reyna | Giovanni Reyna | Association football | United States |
Bernardinho | Bruno Rezende | Volleyball | Brazil |
Anfisa Reztsova | Daria Virolaynen, Kristina Reztsova | Biathlon | Russia |
| Franck Ribéry, Steeven Ribéry | Association football | France |
Glen Rice | Glen Rice Jr. | Basketball | United States |
| Maurice Richard, Henri Richard | Ice Hockey | Canada |
| Claudia Riegler, Manuela Riegler | Snowboarding | Austria |
Leon Riley | Pat Riley, Lee Riley | Baseball Basketball American football | United States |
Eusebio Ríos | Roberto Ríos | Association football | Spain |
Cal Ripken Sr. | Cal Ripken Jr., Billy Ripken | Baseball | United States |
| Amy Roberts, Jessica Roberts | Cycle sport | Great Britain ( Wales) |
Kenny Roberts | Kenny Roberts Jr. | Motorcycle racing | United States |
| Zane Robertson, Jake Robertson | Distance Running | New Zealand |
| Desmond Robinson, Brian Robinson | Road bicycle racing | Great Britain |
| Stephen Roche, Laurence Roche | Road bicycle racing | Ireland |
Stephen Roche | Nicolas Roche | Road bicycle racing | Ireland |
| Christophe Rochus, Olivier Rochus | Tennis | Belgium |
| Aaron Rodgers, Jordan Rodgers | American football | United States |
| Anastasia Rodionova, Arina Rodionova | Tennis | Russia
Australia |
Dennis Rodman | Trinity Rodman | Basketball / Association football | United States |
| Francisco Rodríguez Araya, Ricardo Rodríguez (footballer), Roberto Rodríguez Araya | Association football | Switzerland |
| José Luis Rodríguez, Aaron Rodríguez | Professional wrestling | Mexico |
José Luis Rodríguez | José Alberto Rodríguez, Guillermo Rodríguez | Mixed martial arts / Professional wrestling | Mexico |
Eberhard Rösch | Michael Rösch | Biathlon | East Germany
Germany
Belgium |
| Mariano Rojas, José Joaquín Rojas | Cycle sport | Spain |
Oksana Romanenkova | Viktor Romanenkov | Figure skating | Estonia |
Romário | Romarinho | Association football | Brazil |
| Yoel Romero, Yoan Pablo Hernández | Wrestling / Boxing | Cuba Germany |
| Ronaldinho, Assis | Association football | Brazil |
| Wayne Rooney, John Rooney | Association football | United Kingdom ( England)
Ireland |
| Joe Root, Billy Root | Cricket | United Kingdom ( England) |
Keke Rosberg | Nico Rosberg | Auto racing | Finland
Germany |
Louis Rosier | Jean-Louis Rosier | Motorsport | France |
Graziano Rossi | Valentino Rossi | Motorcycle racing | Italy |
Jolanda de Rover | Kira Toussaint | Swimming | Netherlands |
Harri Rovanperä | Kalle Rovanperä | Rallying | Finland |
| Matthew Rowe, Luke Rowe | Cycle sport | United Kingdom ( Wales) |
| Joanna Rowsell Shand, Erick Rowsell | Cycle sport | United Kingdom ( England) |
| Maurício Rua, Murilo Rua | Mixed martial arts | Brazil |
| Max Rüegg, Tony Rüegg | Bobsleigh | Switzerland |
Tony Rüegg | Ralph Rüegg | Bobsleigh | Switzerland |
| Anastasija Reiberger, Lisa Ryzih | Track and field | Germany |
Virgil Runnels Jr. | Dustin Runnels, Cody Runnels | Professional wrestling | United States |
Tony Rutter | Michael Rutter | Motorcycle racing | United Kingdom ( England) |
Christian Ruud | Casper Ruud | Tennis | Norway |
Buddy Ryan | Rex Ryan, Rob Ryan | American football | United States |
| Kendall Ryan, Alexis Ryan | Cycle sport | United States |
| Martina Sáblíková, Milan Sáblík | Speed skating, Cycle sport | Czech Republic |
Arvydas Sabonis | Domantas Sabonis, Tautvydas Sabonis (in Spanish) | Basketball | Lithuania
United States |
Dragan Šakota | Dušan Šakota | Basketball | Serbia
Greece |
| Marat Safin, Dinara Safina | Tennis | Russia |
| Juraj Sagan, Peter Sagan | Road bicycle racing | Slovakia |
| Rupa Saini, Krishna Saini, Prema Saini | Field hockey | India |
Carlos Sainz | Carlos Sainz Jr. | Rallying / Auto racing | Spain |
| Buvaisar Saitiev, Adam Saitiev | Wrestling | Russia ( Chechnya) |
Joe Saldana | Joey Saldana | Auto racing | United States |
István Sallói | Dániel Sallói | Association football | Hungary |
Yuliya Salnikova | Stefanos Tsitsipas, Petros Tsitsipas | Tennis | Soviet Union ( Russia)
Greece |
Nino Salukvadze | Tsotne Machavariani | Shooting sports | Georgia |
| Chupe Salvador, Gregorio Salvador | Association football | Equatorial Guinea
Spain |
| Adriana Samuel, Alexandre Ramos Samuel | Volleyball | Brazil |
| Emilio Sánchez, Javier Sánchez, Arantxa Sánchez Vicario | Tennis | Spain |
| Luis León Sánchez, Pedro León Sánchez | Road bicycle racing / Association football | Spain |
| Jesús Sánchez Jover, Francisco Sánchez Jover | Volleyball | Spain |
Francisco Sánchez Jover | Javier Sánchez Carreres | Volleyball | Spain |
| Dindin Santiago-Manabat, Jaja Santiago | Volleyball | Philippines |
| Luguelín Santos, Juander Santos | Sprinting | Dominican Republic |
| Djalma Santos, Nilton Santos | Association football | Brazil |
| Lisa Sargeant, Kristy Sargeant | Figure skating | Canada |
Nobuo Satō, Kumiko Sato | Yuka Sato | Figure skating | Japan |
Robbie Savage | Charlie Savage | Association football | United Kingdom ( Wales) |
Ivan Savostikov | Kirill Savostikov | Association football | Belarus |
Roland Schär | Michael Schär | Road bicycle racing | Switzerland |
| Ian Scheckter, Jody Scheckter | Auto racing | South Africa |
Jody Scheckter | Tomas Scheckter, Toby Scheckter | Auto racing | South Africa |
| Marlies Schild, Bernadette Schild | Alpine skiing | Austria |
Johny Schleck | Fränk Schleck, Andy Schleck | Road bicycle racing | Luxembourg |
Peter Schmeichel | Kasper Schmeichel | Association football | Denmark |
| Michael Schumacher, Ralf Schumacher | Auto racing | Germany |
Michael Schumacher, Corinna Schumacher | Mick Schumacher | Auto racing, equestrianism | Germany |
Ralf Schumacher | David Schumacher | Auto racing | Germany |
| Dave Schultz, Mark Schultz | Wrestling | United States |
| Kathrin Schweinberger, Christina Schweinberger (twins) | Road bicycle racing | Austria |
| Bastian Schweinsteiger, Tobias Schweinsteiger | Association football | Germany |
| Miles Scotson, Callum Scotson | Cycle sport | Australia |
Chico Serra | Daniel Serra | Motor sport | Brazil |
Jack Shea | Jim Shea Sr. | Speed skating / Skiing | United States |
Jim Shea Sr. | Jimmy Shea | Skiing / Skeleton | United States |
| Jonny Searle, Greg Searle | Rowing | United Kingdom ( England) |
| Valentyna Semerenko, Vita Semerenko | Biathlon | Ukraine |
Ekramy El-Shahat | Sherif Ekramy | Association football | Egypt |
Carlo Sharma | Fifi Sharma | Basketball / Volleyball | Philippines |
| Cassie Sharpe, Darcy Sharpe | Freestyle skiing / Snowboarding | Canada |
| Sterling Sharpe, Shannon Sharpe | American football | United States |
Bryan Shelton | Ben Shelton | Tennis | United States |
| Maia Shibutani, Alex Shibutani | Ice dancing | United States |
Peter Shilton | Sam Shilton | Association football | United Kingdom ( England) |
Natalya Shubenkova | Sergey Shubenkov | Track and field | Russia |
| Suad Šehović, Sead Šehović | Basketball | Montenegro |
| Juris Šics, Andris Šics | Luge | Latvia |
Sidek Abdullah Kamar | Misbun, Razif, Jalani, Rahman and Rashid Sidek | Badminton | Malaysia |
Misbun Sidek | Misbun Ramdan Misbun | Badminton | Malaysia |
| Christina Siggaard, Soren Malling Siggaard | Cycle sport | Denmark |
Ben Sim | Sami Kennedy-Sim | Cross-country skiing / Freestyle skiing | Australia |
| Cristian Javier Simari Birkner, María Belén Simari Birkner, Macarena Simari Birkner | Alpine skiing | Argentina |
Diego Simeone | Giovanni Simeone, Gianluca Simeone | Association football | Argentina
Spain |
Dave Simmons | Ben Simmons | Basketball | United States
Australia |
Phil Simms | Chris Simms, Matt Simms | American football | United States |
| Pascal Simon, Régis Simon, Jérôme Simon, François Simon | Cycle sport | France |
Jeff Simpson | Russell Simpson | Tennis | New Zealand |
Milkha Singh | Nirmal Kaur | Athletics / Volleyball | India |
| Valent Sinković, Martin Sinković | Rowing | Croatia |
Alexei Sivakov, Aleksandra Koliaseva | Pavel Sivakov | Cycle sport | Russia France |
Willy Skibby | Jesper Skibby, Karina Skibby | Cycle sport | Denmark |
| Ann-Elen Skjelbreid, Liv Grete Skjelbreid | Biathlon | Norway |
| Rozanne Slik, Ivar Slik | Cycle sport | Netherlands |
Uiloq Slettemark, Øystein Slettemark | Ukaleq Slettemark, Sondre Slettemark, Inuk Slettemark | Biathlon | Denmark
Greenland |
| Assoli Slivets, Timofei Slivets | Freestyle skiing | Belarus |
| Lotte Smiseth Sejersted, Adrian Smiseth Sejersted | Alpine skiing | Norway |
Calvin Smith | Calvin Smith Jr. | Track and field | United States |
| David Smith, Pete Smith | Curling | Great Britain ( Scotland) |
David Smith | Kyle Smith, Cammy Smith, Mili Smith | Curling | United Kingdom ( Scotland) |
| Laura Smulders, Merel Smulders | BMX racing | Netherlands |
| Wesley Sneijder, Rodney Sneijder, Jeffrey Sneijder | Association football | Netherlands |
| Sócrates, Raí | Association football | Brazil |
| Bright Sodje, Efe Sodje, Sam Sodje, Akpo Sodje | Rugby league, rugby union, association football | United Kingdom ( England)
Nigeria |
Tiit Sokk | Tanel Sokk, Sten Sokk | Basketball | Estonia |
| Henning Solberg, Petter Solberg | Rallying | Norway |
Petter Solberg | Oliver Solberg | Rallying | Norway |
| Enrique Solis, Julian Solís, Rafael Solis, Santos Solis | Boxing | Puerto Rico |
Diego Soñora | Joel Soñora | Association football | Argentina
United States |
Gøran Sørloth | Alexander Sørloth | Association football | Norway |
| Scott Spann, Alexi Spann | Swimming | United States |
John Spencer | Brad Spencer | Association football | United Kingdom ( Scotland) |
Leon Spinks, Michael Spinks | Leon Spinks Jr. Darrell Spinks, Cory Spinks | Boxing | United States |
Alois Stadlober, Roswitha Steiner | Luis Stadlober, Teresa Stadlober | Cross-country skiing, alpine skiing | Austria |
Cees Stam | Danny Stam | Bicycle racing | Netherlands |
Hennie Stamsnijder | Tom Stamsnijder | Bicycle racing | Netherlands |
Tony Stanger | George Stanger | Rugby union / Association football | Great Britain ( Scotland)
New Zealand |
| Mitchell Starc, Brandon Starc | Cricket / High jump | Australia |
Olafur Stefansson (uncle), Jon Arnor Stefansson (uncle) | Martin Hermannsson[4] | Handball Basketball | Finland |
| Ed Stein, Brian Stein, Mark Stein | Association football | United Kingdom ( England) |
John Stephens | Sloane Stephens | American football Tennis | United States |
Hroar Stjernen | Andreas Stjernen | Ski jumping | Norway |
| Wayne Stetina, Dale Stetina | Cycle sport | United States |
Dale Stetina | Peter Stetina | Cycle sport | United States |
Dennis Stewart | Elliot Stewart | Judo Paralympic judo | Great Britain ( England) |
| Jimmy Stewart, Jackie Stewart | Auto racing | United Kingdom ( Scotland) |
Jackie Stewart | Paul Stewart | Auto racing | United Kingdom ( Scotland) |
Josef Stiegler | Resi Stiegler | Alpine skiing | Austria United States |
John Stockton | David Stockton, Michael Stockton | Basketball | United States |
Gordon Strachan | Gavin Strachan | Association football | United Kingdom ( Scotland) |
Darryl Strawberry | D. J. Strawberry | Baseball / Basketball | United States |
Hans Stuck | Hans-Joachim Stuck | Auto racing | Germany |
| Luis Suárez, Paolo Suárez | Association football | Uruguay
El Salvador |
Vaso Subotić | Gavril Subotić | Water polo | Yugoslavia
Serbia |
| Cyril Suk, Helena Suková | Tennis | Czechoslovakia
Czech Republic |
Sergei Sukhoruchenkov | Olga Zabelinskaya | Road bicycle racing | Soviet Union ( Russian SFSR) Russia |
Clive Sullivan | Anthony Sullivan | Rugby league, Rugby union | Great Britain ( Wales) |
| Katie Summerhayes. Molly Summerhayes | Freestyle skiing | United Kingdom ( England) |
John Surtees | Henry Surtees | Motorsport | United Kingdom ( England) |
Sutter family | | Ice hockey | Canada |
| Gary Sutton, Shane Sutton | Road bicycle racing | Australia |
Gary Sutton | Christopher Sutton | Road bicycle racing | Australia |
Mike Sutton | Chris Sutton, John Sutton | Association football | United Kingdom ( England) |
Gunde Svan, Marie Svan | Julia Svan (Swedish), Ferry Svan | Cross-country skiing and Auto racing Skiing, Logger sports | Sweden |
Gabriela Svobodová | Gabriela Koukalová | Biathlon | Czech Republic |
| Allyson Swaby, Chantelle Swaby | Association football | Jamaica
United States |
Oscar Swahn | Alfred Swahn | Shooting | Sweden |
| Jack Swart, Stephen Swart | Road bicycle racing | New Zealand |
Tomasz Świątek | Iga Świątek | Rowing, Tennis | Poland |
| Maarten Swings, Bart Swings | Speed skating, inline speed skating | Belgium |
| Bernadette Swinnerton, Catherine Swinnerton, Paul Swinnerton | Road bicycle racing | United Kingdom ( England) |
Don Talbot, Jan Cameron (divorced) | Scott Talbot | Swimming | Australia |
Marco Tamberi | Gianmarco Tamberi | High jump | Italy |
| Harry Tanfield, Charlie Tanfield | Cycle sport | United Kingdom ( England) |
Mosi Tatupu | Lofa Tatupu | American football | American Samoa
United States |
Jeff Taylor | Jeffery Taylor | Basketball | United States
Sweden |
| Jeff Teague, Marquis Teague | Basketball | United States |
Alvin Teng | Jeric Teng, Jeron Teng | Basketball | Philippines |
| Niki Terpstra, Mike Terpstra | Cycle sport | Netherlands |
| Lars Teutenberg, Sven Teutenberg, Ina-Yoko Teutenberg | Cycle sport | Germany |
Lars Teutenberg | Lea Lin Teutenberg, Tim Torn Teutenberg | Cycle sport | Germany |
| Stefan Tewes, Jan-Peter Tewes | Field hockey | Germany |
| Mike Thackwell, Lisa Thackwell | Motor racing | New Zealand |
Kurt Thiim | Nicki Thiim | Motorsport | Denmark |
| Marielle Thompson, Broderick Thompson | Ski cross / Alpine skiing | Canada |
Mychal Thompson | Mychel Thompson, Klay Thompson, Trayce Thompson | Basketball / Baseball | Bahamas
United States |
| Candide Thovex, Mirabelle Thovex | Freestyle skiing / Snowboarding | France |
Lilian Thuram | Marcus Thuram, Khéphren Thuram | Association football | France |
Laurent Tillie, Caroline Keulen | Kim Tillie, Kévin Tillie, Killian Tillie | Volleyball / Basketball | France
Netherlands |
| Maija Tīruma, Elīza Cauce | Luge | Latvia |
| Dorota Tlałka-Mogore, Małgorzata Tlałka-Mogore | Alpine skiing | Poland
France |
Pauli Toivonen | Henri Toivonen, Harri Toivonen | Rallying Auto racing | Finland |
Mel Tom | Logan Tom | American football Volleyball | United States |
| Susan Tooby, Angela Tooby | Track and field | United Kingdom ( Wales) |
Geoff Wightman Susan Tooby | Jake Wightman | Track and field | United Kingdom ( Wales, Scotland) |
| Amédée Thubé, Gaston Thubé, Jacques Thubé | Sailing | France |
| Yaya Touré, Kolo Touré, Ibrahim Touré | Association football | Ivory Coast |
Jorge Trezeguet | David Trezeguet | Association football | Argentina
France |
| Emma Trott, Laura Kenny | Cycle sport | United Kingdom ( England) |
Pål Trulsen | Pia Trulsen | Curling | Norway |
Mitsuo Tsukahara | Naoya Tsukahara | Artistic gymnastics | Japan |
| Freddie Tuilagi, Henry Tuilagi, Alesana Tuilagi, Anitelea Tuilagi, Sanele Vavae Tuilagi, Manu Tuilagi | Rugby union | Samoa
United Kingdom ( England) |
Brian Tutt | Brianne Tutt | Ice hockey / Speed skating | Canada |
| Panna Udvardy, Luca Udvardy | Tennis | Hungary |
Ted Uhlaender | Katie Uhlaender | Baseball / Skeleton | United States |
| Rory Underwood, Tony Underwood | Rugby Union | United Kingdom ( England) |
| Jerry Unser Jr., Bobby Unser, Al Unser | Auto racing | United States |
Jerry Unser Jr. | Johnny Unser | Auto racing | United States |
Bobby Unser | Robby Unser | Auto racing | United States |
Al Unser | Al Unser Jr. | Auto racing | United States |
Al Unser Jr. | Al Unser III | Auto racing | United States |
Rolando Uríos (in Spanish) | Rolando Uríos González | Handball | Cuba
Spain |
| Alexander Uspenski, Vladimir Uspenski | Figure skating | Russia |
| Fulvio Valbusa, Sabina Valbusa | Cross-country skiing | Italy |
Adri van der Poel (Raymond Poulidor French grandfather) | David van der Poel, Mathieu van der Poel | Road bicycle racing, cyclo-cross | Netherlands |
| Sanne van Kerkhof, Yara van Kerkhof | Speed skating | Netherlands |
Andy Van Slyke | Scott Van Slyke | Baseball | United States |
Ernie Vandeweghe | Kiki VanDeWeghe, Tauna Vandeweghe | Basketball / Swimming | United States |
Tauna Vandeweghe | CoCo Vandeweghe | Swimming / Tennis | United States |
| Jelle Vanendert, Dennis Vanendert | Cycle sport | Belgium |
Wim Vansevenant | Mauri Vansevenant | Road bicycle racing | Belgium |
| Laurens Vanthoor, Dries Vanthoor | Motor racing | Belgium |
| Dieter Vanthourenhout, Michael Vanthourenhout | Cycle sport | Belgium |
| Sylvain Vasseur, Alain Vasseur | Road bicycle racing | France |
Alain Vasseur | Cédric Vasseur, Loïc Vasseur | Road bicycle racing | France |
José Velázquez | José de Jesús Mendoza, José Alfredo Mendoza, Arturo Mendoza, Tomas Mendoza, Ray Mendoza Jr. | Professional wrestling | Mexico |
| Martin Velits, Peter Velits (twins) | Road bicycle racing | Slovakia |
| Julien Vermote, Alphonse Vermote (in Dutch) | Road bicycle racing | Belgium |
Juan Ramón Verón | Juan Sebastián Verón | Association football | Argentina |
Zoltán Verrasztó | Dávid Verrasztó, Evelyn Verrasztó | Swimming | Hungary |
Jos Verstappen | Max Verstappen | Auto racing | Netherlands |
František Veselý (in Czech) (great-grandfather) | František Vesely (in Czech) (grandfather) | Association football | Czech Republic |
František Veselý (in Czech) (grandfather) | František Veselý (father) | Association football | Czech Republic |
František Veselý (father) | Daniel Veselý (in Czech), Lukáš Veselý | Association football | Czech Republic |
Frédéric Vichot (uncle) | Arthur Vichot | Road bicycle racing | France |
| Jean-Pierre Vidal, Vanessa Vidal | Alpine skiing | France |
| Aurelio Vidmar, Tony Vidmar | Association football | Australia |
Roberto Vieri | Christian Vieri, Max Vieri | Association football | Italy
Australia |
Jose Marcelo Vildoza | Luca Vildoza | Basketball | Argentina |
| Gilles Villeneuve, Jacques Villeneuve (elder) | Auto racing | Canada |
Gilles Villeneuve | Jacques Villeneuve | Auto racing | Canada |
| Emilio Villoresi, Luigi Villoresi | Auto racing | Italy |
| Elia Viviani, Attilio Viviani | Cycle sport | Italy |
| Erik De Vlaeminck, Roger De Vlaeminck | Cycle sport | Belgium |
| Blanka Vlašić, Nikola Vlašić | Athletics / Association football | Croatia |
| Gerrit Voorting, Adrie Voorting | Road bicycle racing | Netherlands |
Petar Vukičević | Christina Vukicevic, Vladimir Vukicevic | Track and field | Yugoslavia ( Serbia)
Norway |
Bill Vukovich (grandfather) | Bill Vukovich II (father) | Auto racing | United States |
Bill Vukovich II (father) | Bill Vukovich III (grandson) | Auto racing | United States |
Feʻao Vunipola | Mako Vunipola, Billy Vunipola | Rugby union | Tonga
New Zealand
United Kingdom ( England)
Australia |
Jessie Wadworth | Brenda Wadworth | Archery | United Kingdom ( England) |
Walfridsson family (in German) | | Auto sport | Sweden |
| Kira Walkenhorst, Pia Walkenhorst | Beach volleyball | Germany |
Chris Walker | Jessie Walker | Cycle sport | Great Britain ( England) |
Bill Walton | Luke Walton | Basketball | United States |
| Derek Warwick, Paul Warwick | Auto racing | United Kingdom ( England) |
George Weah | George Weah Jr., Timothy Weah | Association football | Liberia
United States |
David Weir | Jensen Weir | Association football | United Kingdom ( Scotland) United Kingdom ( England) |
Robert Weir | Jillian Weir | Track and field | United Kingdom ( England) Canada |
Harti Weirather, Hanni Wenzel | Tina Weirather | Alpine skiing | Austria Liechtenstein |
| Paul Wellens, Johan Wellens, Leo Wellens | Cycle sport | Belgium |
Leo Wellens | Tim Wellens | Cycle sport | Belgium |
Bruce Wells | Jossi Wells, Byron Wells, Beau-James Wells, Jackson Wells | Freestyle skiing | New Zealand |
| Lotta Udnes Weng, Tiril Udnes Weng | Cross-country skiing | Norway |
| Hanni Wenzel, Andreas Wenzel | Alpine skiing | Liechtenstein |
| Jacob Wester, Oscar Wester | Freestyle skiing | Sweden |
| Curtis White, Emma White | Cycle sport | United States |
| Jim Whitley, Jeff Whitley | Association football | United Kingdom ( Northern Ireland) |
| Tre Whyte, Kye Whyte | BMX racing | Great Britain ( England) |
Gary Wiggins | Bradley Wiggins | Cycle sport | Australia Great Britain ( England) |
Bradley Wiggins | Ben Wiggins | Cycle sport | Great Britain ( England) |
| Dominique Wilkins, Gerald Wilkins | Basketball | United States |
Gerald Wilkins | Damien Wilkins | Basketball | United States |
| Daniël Willemsen, Marcel Willemsen | Sidecarcross | Netherlands |
Frank Williams | Claire Williams, Jonathan Williams | Auto sport | United Kingdom ( England) |
| Iñaki Williams, Nico Williams | Association football | Ghana
Spain |
| Jodie Williams, Hannah Williams | Athletics | Great Britain ( England) |
J. J. Williams | Rhys Williams | Rugby union / Track and field | United Kingdom ( Wales) |
| Venus Williams, Serena Williams | Tennis | United States |
Stuart Willmott (Jackie Willmott aunt) | Aimee Willmott, Chloe Willmott | Swimming | United Kingdom ( England) |
| Bryon Wilson, Bradley Wilson | Freestyle skiing | United States |
Malcolm Wilson | Matthew Wilson | Rallying | United Kingdom ( England) |
| Markus Windisch, Dominik Windisch | Biathlon | Italy |
Manfred Winkelhock | Markus Winkelhock | Auto racing | Germany |
| Manfred Winkelhock, Joachim Winkelhock, Thomas Winkelhock | Auto racing | Germany |
Kellen Winslow | Kellen Winslow II | American football | United States |
Herbert Wittmann | Marco Wittmann, Nico Wittmann | Auto sport | Germany |
Agnesa Wlachovská | Vladimír Búřil, Peter Búřil | Figure skating / Ice hockey | Czech Republic Slovakia |
Alan Woan | Ian Woan | Association football | United Kingdom ( England) |
Gordon Wood | Keith Wood | Rugby union | Ireland |
| Patrik Wozniacki, Caroline Wozniacki | Association football / Tennis | Denmark |
Mats Wranå | Rasmus Wranå, Isabella Wranå | Curling | Sweden |
Ian Wright | Shaun Wright-Phillips, Bradley Wright-Phillips | Association football | United Kingdom ( England) |
| Kal Yafai, Gamal Yafai, Galal Yafai | Boxing | Great Britain ( England) |
| Adam Yates, Simon Yates | Cycle sport | United Kingdom ( England) |
| Kazuki Yazawa, Aki Yazawa | Canoe slalom | Japan |
Andrey Yefimov | Yuliya Yefimova | Swimming | Russia |
Yeo Hong-chul, Kim Chae-eun (formerly Kim Yoon-ji) | Yeo Seo-jeong | Artistic gymnastics | South Korea |
| Elias Ymer, Mikael Ymer | Tennis | Sweden |
| Clint Yorke, Dwight Yorke | Cricket, association football | Trinidad and Tobago |
| Chinami Yoshida, Yurika Yoshida | Curling | Japan |
| Sheila Young, Roger Young | Cycle sport, speed skating | United States |
Nick Youngs | Tom Youngs, Ben Youngs | Rugby union | Great Britain ( England) |
| Phil Younghusband, James Younghusband | Association football | Philippines |
Erik Zabel | Rick Zabel | Road bicycle racing | Germany |
Hillar Zahkna | Rene Zahkna | Biathlon | Estonia |
Zlatko Zahovič | Luka Zahović | Association football | Slovenia |
| Ilnur Zakarin, Aydar Zakarin | Road bicycle racing | Russia |
| Adam Žampa, Andreas Žampa | Alpine skiing | Slovakia |
| Benjamín Zarandona, Iván Zarandona | Association football | Equatorial Guinea
Spain |
| Mauro Zárate, Rolando Zárate, Sergio Zárate, Ariel Zárate | Association football | Argentina |
Igor Zavozin, Elena Garanina (divorced) | Maxim Zavozin | Ice dancing | Soviet Union ( Russian SFSR) Russia |
Vyacheslav Zaytsev, Irina Pozdnyakova | Ivan Zaytsev | Volleyball / Swimming | Soviet Union ( Russian SFSR) Italy Russia |
| Zé Elias, Rubinho | Association football | Brazil |
| Luke Zeller, Tyler Zeller, Cody Zeller | Basketball | United States |
| Zico, Edu | Association football | Brazil |
Zico | Junior | Association football | Brazil |
Zinedine Zidane | Enzo Fernández, Luca Zidane | Association football | France
Spain |
Dimitar Zlatanov | Hristo Zlatanov | Volleyball | Bulgaria |
Emil Zografski | Vladimir Zografski | Ski jumping | Bulgaria |
Zizinho | Giovani dos Santos, Éder dos Santos, Jonathan dos Santos | Association football | Brazil
Mexico |
| Haimar Zubeldia, Joseba Zubeldia | Road bicycle racing | Spain |
Marina Zueva | Fedor Andreev | Ice dancing | Russia |
| Pirmin Zurbriggen, Heidi Zurbriggen | Alpine skiing | Switzerland |
Pirmin Zurbriggen | Elia Zurbriggen | Alpine skiing | Switzerland |
Alexander Zverev Sr. | Mischa Zverev, Alexander Zverev Jr. | Tennis | Soviet Union ( Russian SFSR)
Germany |
Charles Zwolsman Sr. | Charles Zwolsman Jr. | Motorsport | Netherlands |
Iftikhar Ali Khan Pataudi | Mansoor Ali Khan Pataudi | Cricket | India |
Roger Binny | Stuart Binny | Cricket | India |
Yograj Singh | Yuvraj Singh | Cricket | India |
Krishnamachari Srikkanth | Anirudha Srikkanth | Cricket | India |
Ramanathan Krishnan | Ramesh Krishnan | Tennis | India |
Milkha Singh | Jeev Milkha Singh | Athletics, Golf | India |
Dhyan Chand | Ashok Kumar | Field hockey | India |
Vece Paes | Leander Paes | Field hockey, Tennis | India |
| Irfan Pathan, Yusuf Pathan | Cricket | India |
| Hardik Pandya, Krunal Pandya | Cricket | India |