| Jiří Koštíř | |
| Nationality: | Czechoslovakian |
| Gp Active Years: | 1956 - 1957, 1959 |
| Gp Teams: | ČZ |
| Gp Race Starts: | 5 |
| Gp Race Wins: | 0 |
| Gp Podiums: | 0 |
| Gp Total Points: | 1 |
| Gp Poles: | N/A |
| Gp Fastest Laps: | N/A |
| Gp Last Race: | 1959 250cc Belgian Grand Prix |
Jiří Koštíř (1928-19 June 1960) is a former Grand Prix motorcycle road racer from the former Czechoslovakia.
Koštíř was a factory ČZ rider for most of his career. He died after an accident at the Znojmo street circuit, currently located in the Czech Republic, in 1960.[1]
| Position | width=20 | 1 | width=20 | 2 | width=20 | 3 | width=20 | 4 | width=20 | 5 | width=20 | 6 |
| Points | 8 | 6 | 4 | 3 | 2 | 1 |
(key) (Races in italics indicate fastest lap)
| Year | Class | Team | 1 | 2 | 3 | 4 | 5 | 6 | 7 | Points | Rank | Wins |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1956 | 250cc | ČZ | IOM | NED 6 | BEL | GER | ULS | NAT | 1 | 17th | 0 | |
| 1957 | 250cc | ČZ | GER | IOM 7 | NED Ret | BEL 11 | ULS | NAT | 0 | - | 0 | |
| 1959 | 250cc | ČZ | IOM | GER | NED 12 | BEL | SWE | ULS | NAT | 0 | - | 0 |