2006 Grand Prix motorcycle racing season Participants MotoGP participants

| Team | Constructor_ | Motorcycle | Tyres | No_ | Rider | Rounds_ |
|---|---|---|---|---|---|---|
| Camel Yamaha Team | Yamaha | Yamaha YZR-M1 | M | 5 | Colin Edwards | All |
| Camel Yamaha Team | Yamaha | Yamaha YZR-M1 | M | 46 | Valentino Rossi | All |
| Konica Minolta Honda | Honda | Honda RC211V | M | 6 | Makoto Tamada | All |
| Tech 3 Yamaha | Yamaha | Yamaha YZR-M1 | D | 7 | Carlos Checa | All |
| Tech 3 Yamaha | Yamaha | Yamaha YZR-M1 | D | 77 | James Ellison | All |
| Team Roberts | Team Roberts | KR211V | M | 10 | Kenny Roberts, Jr. | All |
| Ducati Marlboro Team | Ducati | Ducati Desmosedici GP6 | B | 15 | Sete Gibernau | 1–7, 10–11, 13–16 |
| Ducati Marlboro Team | Ducati | Ducati Desmosedici GP6 | B | 65 | Loris Capirossi | All |