| Official Name: | Shemshad Poshteh |
| Native Name: | شمشادپشته |
| Settlement Type: | village |
| Pushpin Map: | Iran |
| Mapsize: | 150px |
| Subdivision Type: | Country |
| Subdivision Type1: | Province |
| Subdivision Name1: | Gilan |
| Subdivision Type2: | County |
| Subdivision Name2: | Rudsar |
| Subdivision Type3: | Bakhsh |
| Subdivision Name3: | Chaboksar |
| Subdivision Type4: | Rural District |
| Subdivision Name4: | Owshiyan |
| Population As Of: | 2006 |
| Population Total: | 31 |
| Population Density Km2: | auto |
| Timezone: | IRST |
| Utc Offset: | +3:30 |
| Timezone Dst: | IRDT |
| Utc Offset Dst: | +4:30 |
| Coordinates: | 36.9567°N 50.5322°W |
Shemshad Poshteh (Persian: شمشادپشته, also Romanized as Shemshād Poshteh) is a village in Owshiyan Rural District, Chaboksar District, Rudsar County, Gilan Province, Iran. At the 2006 census, its population was 31, in 8 families.