2012 Japanese motorcycle Grand Prix
The 2012 Japanese motorcycle Grand Prix was the fifteenth round of the 2012 Grand Prix motorcycle racing season. It took place on the weekend of 12–14 October 2012 at the Twin Ring Motegi, located in Motegi, Japan.
Classification
MotoGP
Moto2
Moto3
Below are the standings for the top five riders and constructors after round fifteen has concluded.
;Riders' Championship standings
;Constructors' Championship standings
| Constructor | Points |
| 1 |  Honda | 337 |
| 2 | Yamaha | 326 |
| 3 |  Ducati | 161 |
| 4 | ART | 79 |
| 5 |  BQR | 31 |
- Note: Only the top five positions are included for both sets of standings.
Casey Stoner