| Official Name: | Estur |
| Native Name: | اسطور |
| Settlement Type: | village |
| Pushpin Map: | Iran |
| Mapsize: | 150px |
| Subdivision Type: | Country |
| Subdivision Type1: | Province |
| Subdivision Name1: | Kerman |
| Subdivision Type2: | County |
| Subdivision Name2: | Sirjan |
| Subdivision Type3: | Bakhsh |
| Subdivision Name3: | Central |
| Subdivision Type4: | Rural District |
| Subdivision Name4: | Balvard |
| Population As Of: | 2006 |
| Population Total: | 348 |
| Population Density Km2: | auto |
| Timezone: | IRST |
| Utc Offset: | +3:30 |
| Timezone Dst: | IRDT |
| Utc Offset Dst: | +4:30 |
| Coordinates: | 29.3478°N 56.1394°W |
Estur (fa|اسطور, also Romanized as Esţūr and Estūr; also known as Istor, Īstowr, and Osţūr) is a village in Balvard Rural District, in the Central District of Sirjan County, Kerman Province, Iran. At the 2006 census, its population was 348, in 81 families.