List of Grand Prix motorcycle racers: J
# List of Grand Prix motorcycle racers: J

## List of Grand Prix motorcycle racers

* A
* B
* C
* D
* E
* F
* G
* H
* I
* J
* K
* L
* M
* N
* O
* P
* Q
* R
* S
* T
* U
* V
* W
* X
* Y
* Z

| 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 |
