| Official Name: | Tangab-e Sardar |
| Native Name: | تنگ اب سردار |
| Settlement Type: | village |
| Pushpin Map: | Iran |
| Mapsize: | 150px |
| Subdivision Type: | Country |
| Subdivision Type1: | Province |
| Subdivision Name1: | Kohgiluyeh and Boyer-Ahmad |
| Subdivision Type2: | County |
| Subdivision Name2: | Boyer-Ahmad |
| Subdivision Type3: | Bakhsh |
| Subdivision Name3: | Central |
| Subdivision Type4: | Rural District |
| Subdivision Name4: | Sepidar |
| Population As Of: | 2006 |
| Population Total: | 27 |
| Population Density Km2: | auto |
| Timezone: | IRST |
| Utc Offset: | +3:30 |
| Timezone Dst: | IRDT |
| Utc Offset Dst: | +4:30 |
| Coordinates: | 30.5608°N 51.4186°W |
Tangab-e Sardar (Persian: تنگ اب سردار, also Romanized as Tangāb-e Sardār; also known as Tangāb) is a village in Sepidar Rural District, in the Central District of Boyer-Ahmad County, Kohgiluyeh and Boyer-Ahmad Province, Iran. At the 2006 census, its population was 27, in 8 families.