Athletes 112 / 222
Julius Eisenecker (1903)
Julius Lichtenfels (1884)
Julius Thomson (1888)
Juma Al-Maktoum (1984)
Juma Ikangaa (1957)
June Clark (1939)
Junko Onishi (1974)
Juno Stover-Irwin (1928)
Juozas Ūdras (1925)
Jura Levy (1990)
Juraci Moreira (1979)
Jürgen Brecht (1940)
Jürgen Hingsen (1958)
Jürgen Nolte (1959)
Jürgen Schröder (1960)
Jürgen Theuerkauff (1934)
Jüri Lossmann (1891)
Jüri Tamm (1957)
Juri Yokoyama (1955)
Juris Silovs (1950)
Jushar Haschja (1926)
Jussi Pelli (1954)
Justin Eveson (1980)
Justin Gatlin (1982)
Justin Norris (1980)
Justin Yoder (1986)
Justinas Lagunavičius (1924)
Justine Bouchard (1986)
Justine Dufour-Lapointe (1994)
Justine Smethurst (1987)
Justus Scharowsky (1980)
Justyn Warner (1987)
Jutta Höhne (1951)
Jyoti Sunita Kullu (1978)
Jørgen Thorup (1950)
K. Krishna Mohan (1984)
K. M. Binu (1980)
Kaarlo Maaninka (1953)
Kadhem Sharif (1952)