| Official Name: | Sir Banu |
| Native Name: | سيربانو |
| Settlement Type: | village |
| Pushpin Map: | Iran |
| Mapsize: | 150px |
| Subdivision Type: | Country |
| Subdivision Type1: | Province |
| Subdivision Name1: | Fars |
| Subdivision Type2: | County |
| Subdivision Name2: | Eqlid |
| Subdivision Type3: | Bakhsh |
| Subdivision Name3: | Hasanabad |
| Subdivision Type4: | Rural District |
| Subdivision Name4: | Ahmadabad |
| Population As Of: | 2006 |
| Population Total: | 98 |
| Population Density Km2: | auto |
| Timezone: | IRST |
| Utc Offset: | +3:30 |
| Timezone Dst: | IRDT |
| Utc Offset Dst: | +4:30 |
| Coordinates: | 30.3167°N 52.8058°W |
Sir Banu (Persian: سيربانو, also Romanized as Sīr Bānū; also known as Qal‘eh-ye Sīr Bānū) is a village in Ahmadabad Rural District, Hasanabad District, Eqlid County, Fars Province, Iran. At the 2006 census, its population was 98, in 23 families.