K
| Name | Seasons | World Championships | National Championships | Races | Wins |
|---|---|---|---|---|---|
| Pierre Karsmakers | - | 1980 Four Stroke World Champion | AMA 500cc- 1975 AMA SX 250cc- 1976 |
- | 1 |
| Vladimir Kavinov | 1968-1985 | - | - | - | 6 |
| Mike Kiedrowski | 1988-1997 | - | AMA 125cc- 1989, 1991 AMA 500cc- 1992 AMA 250cc- 1993 |
- | 30 |
| Darryll King | 1987-2007 | - | Aus. 500cc- 2001, 2003, 2004 | - | 5 |
| Shayne King | 1987-2007 | 500cc- 1996 | NZ National Champion- 2003 | - | 6 |
| Heinz Kinigadner | 1978-1988 | 250cc- 1984, 1985 | - | - | 7 |
| Dusty Klatt | - | - | Can. MX1- 2006 | - | - |
| Arne Kring | 1969-1975 | - | - | - | 7 |
Read more about this topic: List Of Motocross Riders