| Official Name: | Bakhsh Zirdu |
| Native Name: | بخش زيردو |
| Settlement Type: | village |
| Pushpin Map: | Iran |
| Mapsize: | 150px |
| Subdivision Type: | Country |
| Subdivision Type1: | Province |
| Subdivision Name1: | Fars |
| Subdivision Type2: | County |
| Subdivision Name2: | Rostam |
| Subdivision Type3: | Bakhsh |
| Subdivision Name3: | Central |
| Subdivision Type4: | Rural District |
| Subdivision Name4: | Rostam-e Yek |
| Population As Of: | 2006 |
| Population Total: | 192 |
| Population Density Km2: | auto |
| Timezone: | IRST |
| Utc Offset: | +3:30 |
| Timezone Dst: | IRDT |
| Utc Offset Dst: | +4:30 |
| Coordinates: | 30.2561°N 51.4183°W |
Bakhsh Zirdu (Persian: بخش زيردو, also Romanized as Bakhsh Zīrdū; also known as Bakhs, Bakhs Zīrdu, Dehbaj, Deh Baj-e Bakhs, Zīrdow, Zīrdow Bakhs, and Zīrdu) is a village in Rostam-e Yek Rural District, in the Central District of Rostam County, Fars Province, Iran. At the 2006 census, its population was 192, in 43 families.