| Official Name: | Poshteh Sara |
| Native Name: | پشته سرا |
| Settlement Type: | village |
| Pushpin Map: | Iran |
| Mapsize: | 150px |
| Subdivision Type: | Country |
| Subdivision Type1: | Province |
| Subdivision Name1: | Gilan |
| Subdivision Type2: | County |
| Subdivision Name2: | Langarud |
| Subdivision Type3: | Bakhsh |
| Subdivision Name3: | Otaqvar |
| Subdivision Type4: | Rural District |
| Subdivision Name4: | Lat Leyl |
| Population As Of: | 2006 |
| Population Total: | 37 |
| Population Density Km2: | auto |
| Timezone: | IRST |
| Utc Offset: | +3:30 |
| Timezone Dst: | IRDT |
| Utc Offset Dst: | +4:30 |
| Coordinates: | 36.9592°N 50.5147°W |
Poshteh Sara (Persian: پشته سرا, also Romanized as Poshteh Sarā; also known as Poshteh Sarān) is a village in Lat Leyl Rural District, Otaqvar District, Langarud County, Gilan Province, Iran. At the 2006 census, its population was 37, in 7 families.