| Official Name: | Posht-e Tang |
| Native Name: | پشت تنگ |
| Settlement Type: | village |
| Subdivision Type: | Country |
| Subdivision Type1: | Province |
| Subdivision Name1: | Bushehr |
| Subdivision Type2: | County |
| Subdivision Name2: | Kangan |
| Subdivision Type3: | Bakhsh |
| Subdivision Name3: | Central |
| Subdivision Type4: | Rural District |
| Subdivision Name4: | Taheri |
| Population As Of: | 2006 |
| Population Total: | 70 |
| Population Density Km2: | auto |
| Timezone: | IRST |
| Utc Offset: | +3:30 |
| Timezone Dst: | IRDT |
| Utc Offset Dst: | +4:30 |
| Pushpin Map: | Iran |
Posht-e Tang (fa|پشت تنگ) is a village in Taheri Rural District, in the Central District of Kangan County, Bushehr Province, Iran. At the 2006 census, its population was 70, in 13 families.