2001 Japanese motorcycle Grand Prix
The 2001 Japanese motorcycle Grand Prix was the first round of the 2001 Grand Prix motorcycle racing season. It took place on the weekend of 6–8 April 2001 at the Suzuka Circuit.250 cc classification
125 cc classification
Championship standings after the race (500cc)
Below are the standings for the top five riders and constructors after round one has concluded.
;Riders' Championship standings
;Constructors' Championship standings
| Constructor | Points |
| 1 |  Honda | 25 |
| 2 | Yamaha | 20 |
| 3 | Suzuki | 9 |
| 4 |  Proton KR | 5 |
| 5 |  Pulse | 0 |
- Note: Only the top five positions are included for both sets of standings.
Valentino Rossi
Garry McCoy