2000 Portuguese motorcycle Grand Prix
The 2000 Portuguese motorcycle Grand Prix was the twelfth round of the 2000 Grand Prix motorcycle racing season. It took place on 3 September 2000 at Estoril.
This was the first Portuguese motorcycle Grand Prix since 1987. It was previously a one-off race held in Spain.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 twelve has concluded.
;Riders' Championship standings
;Constructors' Championship standings
| Constructor | Points |
| 1 |  Yamaha | 236 |
| 2 | Honda | 235 |
| 3 | Suzuki | 200 |
| 4 |  Aprilia | 80 |
| 5 | TSR-Honda | 68 |
- Note: Only the top five positions are included for both sets of standings.
Kenny Roberts Jr.
Carlos Checa