| Official Name: | Parsah Su |
| Native Name: | پرسه سو |
| Settlement Type: | village |
| Pushpin Map: | Iran |
| Mapsize: | 150px |
| Subdivision Type: | Country |
| Subdivision Type1: | Province |
| Subdivision Name1: | Golestan |
| Subdivision Type2: | County |
| Subdivision Name2: | Minudasht |
| Subdivision Type3: | Bakhsh |
| Subdivision Name3: | Central |
| Subdivision Type4: | Rural District |
| Subdivision Name4: | Chehel Chay |
| Population As Of: | 2006 |
| Population Total: | 970 |
| Population Density Km2: | auto |
| Timezone: | IRST |
| Utc Offset: | +3:30 |
| Timezone Dst: | IRDT |
| Utc Offset Dst: | +4:30 |
| Coordinates: | 37.2492°N 55.3933°W |
Parsah Su (Persian: پرسه سو, also Romanized as Parsah Sū; also known as Shāhābād-e Parsah Sū, Porsesu, and Por Sūsū) is a village in Chehel Chay Rural District, in the Central District of Minudasht County, Golestan Province, Iran. At the 2006 census, its population was 970, in 239 families.