| Official Name: | Posht Tang |
| Native Name: | پشت تنگ |
| Settlement Type: | village |
| Pushpin Map: | Iran |
| Mapsize: | 150px |
| Subdivision Type: | Country |
| Subdivision Type1: | Province |
| Subdivision Name1: | Kurdistan |
| Subdivision Type2: | County |
| Subdivision Name2: | Bijar |
| Subdivision Type3: | Bakhsh |
| Subdivision Name3: | Central |
| Subdivision Type4: | Rural District |
| Subdivision Name4: | Najafabad |
| Population As Of: | 2006 |
| Population Total: | 136 |
| Population Density Km2: | auto |
| Timezone: | IRST |
| Utc Offset: | +3:30 |
| Timezone Dst: | IRDT |
| Utc Offset Dst: | +4:30 |
| Coordinates: | 35.6878°N 47.2175°W |
Posht Tang (Persian: پشت تنگ, also Romanized as Posht-e Tang; also known as Poshteh Tang and Pushtang) is a village in Najafabad Rural District, in the Central District of Bijar County, Kurdistan Province, Iran. At the 2006 census, its population was 136, in 31 families. The village is populated by Kurds.[1]