James Jr Stewart
- Category : 1985-births
- Type : GP
- Profile : 3/5 - Martyr / Heretic
- Definition : Split - Small (50,51,57)
- Incarnation Cross : RAX The Vessel of Love 4
American professional motocross racer competing in supercross, currently riding the No. 7. He is also known as Bubba Stewart.
He suffered a deep bruise to his bone and muscle in his left shoulder during seeding trials for SuperMoto on 31 July 2009, forcing him to drop out of the X games.
On 28 March 2010 Stewart's reality show Bubba’s World debuted and ran 10 episodes. The second season started in December, offered 13 episodes and concluded on 24 February.