| Heidar Shonjani Persian: حیدر شونجانی | |
| Birth Date: | 16 December 1945 |
| Birth Place: | Bandar-e Anzali, Iran |
| Death Date: | [1] |
| Height: | 1.73m (05.68feet) |
| Weight: | 70kg (150lb) |
| Sport: | Water polo, swimming |
Heidar Shonjani or Haydar Shonjani (fa|حیدر شونجانی, 16 December 1945 – 8 November 2020), was an Iranian swimmer and water polo player.[2]
His first international tournament was the 1964 Summer Olympics, where he became the first Iranian swimmer to participate in the Summer Olympics; he swam 100 m freestyle, but failed to reach the final. Shonjani was a member of Iran national water polo teams that won a gold medal at the 1974 Asian Games and competed in the 1976 Summer Olympics, finishing 12th.[3]