2001 Rio de Janeiro motorcycle Grand Prix
The 2001 Rio de Janeiro motorcycle Grand Prix was the sixteenth and latest round of the 2001 Grand Prix motorcycle racing season. It took place on the weekend of 1–3 November 2001 at the Autódromo Internacional Nelson Piquet. It was also the final 500cc race in Grand Prix motorcycle racing history. This also marked the final Grand Prix win in the career of Daijiro Kato before his death caused by a crash in the 2003 Japanese motorcycle Grand Prix race.
Also, this is the last season without Jorge Lorenzo in the category until 2020.The race was held in two parts as rain caused its interruption; aggregate times from the two heats determined the final result.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 sixteen has concluded.
;Riders' Championship standings
| Rider | Points |
| 1 |  Valentino Rossi | 325 |
| 2 | Max Biaggi | 219 |
| 3 | Loris Capirossi | 210 |
| 4 |  Alex Barros | 182 |
| 5 |  Shinya Nakano | 155 |
;Constructors' Championship standings
| Constructor | Points |
| 1 | Honda | 367 |
| 2 | Yamaha | 295 |
| 3 | Suzuki | 153 |
| 4 |  Proton KR | 65 |
| 5 |  Sabre V4 | 6 |
- Note: Only the top five positions are included for both sets of standings.
