List of Grand Prix motorcycle racers: J

Name	Seasons	Championships	MotoGP Wins	500cc Wins	350cc Wins	Moto2 Wins	250cc Wins	Moto3 Wins	125cc Wins	80cc Wins	50cc Wins
P. J. Jacobsen	2008	0	0	0	0	0	0	0	0	0	0
Olivier Jacque	1995-2005, 2007	1 250cc - 2000	0	0	0	0	7	0	0	0	0
Quentin Jacquet	2009-2010	0	0	0	0	0	0	0	0	0	0
Börje Jansson	1969-1973	0	0	0	0	0	1	0	3	0	0
Jakub Jantulík	2009	0	0	0	0	0	0	0	0	0	0
Raúl Jara	2001-2002	0	0	0	0	0	0	0	0	0	0
Jean-Pierre Jeandat	1989-1996	0	0	0	0	0	0	0	0	0	0
David Jefferies	1993	0	0	0	0	0	0	0	0	0	0
Tony Jefferies	1970-1971	0	0	0	1	0	0	0	0	0	0
Griff Jenkins	1964-1965, 1967	0	0	0	0	0	0	0	0	0	0
Denis Jenkinson	1950	0	0	0	0	0	0	0	0	0	0
Steve Jenkner	1997-2005	0	0	0	0	0	0	1	0	0	0
Syd Jensen	1949-1950	0	0	0	0	0	0	0	0	0	0
Enrique Jerez	2004-2008	0	0	0	0	0	0	0	0	0	0
Lothar John	1966, 1968-1973	0	0	0	0	0	0	0	0	0	0
Paul Jordan	2008-2009	0	0	0	0	0	0	0	0	0	0
Serge Julin	1984-1985, 1987-1989	0	0	0	0	0	0	0	0	0	0
Károly Juhász	1987-1988	0	0	0	0	0	0	0	0	0	0