| Official Name: | Balut Geru |
| Native Name: | بلوط گرو |
| Settlement Type: | village |
| Subdivision Type: | Country |
| Subdivision Type1: | Province |
| Subdivision Name1: | Fars |
| Subdivision Type2: | County |
| Subdivision Name2: | Mamasani |
| Subdivision Type3: | Bakhsh |
| Subdivision Name3: | Mahvarmilani |
| Subdivision Type4: | Rural District |
| Subdivision Name4: | Mahur |
| Population As Of: | 2006 |
| Population Total: | 23 |
| Population Density Km2: | auto |
| Timezone: | IRST |
| Utc Offset: | +3:30 |
| Timezone Dst: | IRDT |
| Utc Offset Dst: | +4:30 |
Balut Geru (Persian: بلوط گرو, also Romanized as Balūţ Gerū) is a village in Mahur Rural District, Mahvarmilani District, Mamasani County, Fars Province, Iran. At the 2006 census, its population was 23, in 7 families.