| Athlete |
Nation(s) |
Sport(s) |
Role(s) |
Era |
Notes |
| Philip Baker |
 GBR |
ATH |
Olympics / Other |
1912—1920 |
Noel-Baker won the 1959 Nobel Peace Prize for his work on nuclear disarmament. |
| Jim Beckett |
 IRL |
WPO |
Olympics |
1924 |
Uncle of Samuel Beckett, famous Irish author and winner of the 1969 Nobel Prize in Literature. |
| Ernest Bohr |
 DEN |
HOC |
Olympics |
1948 |
Ernest Bohr’s uncle was Niels Bohr, the renowned physicist, who won the 1922 Nobel Prize in Physics. |
| Harald Bohr |
DEN |
FBL |
Olympics / Non-starter |
1906—1908 |
A top mathematician in his own right, Harald Bohr’s brother was Niels Bohr, the renowned physicist, who won the 1922 Nobel Prize in Physics. |
| Roger Cornforth |
 AUS |
WPO |
Olympics |
1948 |
Younger brother of John Cornforth, winner of the 1975 Nobel Prize in Chemistry. |
| Jean d'Estournelles de Constant |
 FRA |
SAL |
Olympics |
1900 |
Brother of Paul Henri, Baron d’Estournelles de Constant, who won the 1909 Nobel Peace Prize for his prominent position in the international movement for peace and arbitration. |
| Susan Francia |
 USA |
ROW |
Olympics |
2008—2012 |
Her mother, Katalin Karikó won the Nobel Prize in Physiology or Medicine in 2023 |
| Simon Lessing |
GBR |
TRI |
Olympics |
2000 |
Nephew of Doris Lessing, winner of the 2007 Nobel Prize in Literature. |
| György Libik |
 HUN |
ALP |
Olympics |
1948 |
His father in law was Albert Szent-Györgyi, who won the 1937 Nobel Prize in Medicine. |
| Jack Yeats |
IRL |
ART |
Olympics |
1924—1932 |
Brother of William Butler Yeats, who won the 1923 Nobel Prize in Literature. |
| Jenő Zsigmondy |
HUN |
TEN |
Olympics |
1908—1912 |
His father's cousin, Richard Adolf Zsigmondy, won the 1926 Nobel Prize in Chemistry. |