Martial artists 23 / 49
Jorge Gurgel (1977)
Jorge Masvidal (1984)
Jorge Patino (1973)
Jorge Rivera (1972)
Jorge Santiago (1980)
Jörgen Kruth (1974)
José Aldo (1986)
José Reis (1977)
José Tadeu Carneiro Cardoso (1956)
Joseph Benavidez (1984)
Joseph Kwadjo (1985)
Josh Barnett (1977)
Josh Burkman (1980)
Josh Griffiths (1980)
Josh Grispi (1988)
Josh Haynes (1977)
Josh Koscheck (1977)
Josh Neer (1983)
Josh Thomson (1978)
Julie Kedzie (1981)
Jung Bu-Kyung (1978)
Jung Tae Park (1943)
Junichi Sawayashiki (1984)
Junie Browning (0654)
Junior dos Santos (1984)
Junji Ito (1986)
Justin Buchholz (1983)
Justin Edwards (1983)
Justin Eilers (1978)
Justin Lawrence (1990)
Justin Levens (1980)
Justin McCully (1976)
Justin Salas (1982)
Justin Wilcox (1978)
Jutaro Nakao (1970)
Kaitlin Young (1985)
Kalib Starnes (1975)
Kamal Shalorus (1977)