| Official Name: | Sangtu |
| Native Name: | سنگتو |
| Settlement Type: | village |
| Pushpin Map: | Iran |
| Mapsize: | 150px |
| Subdivision Type: | Country |
| Subdivision Type1: | Province |
| Subdivision Name1: | Mazandaran |
| Subdivision Type2: | County |
| Subdivision Name2: | Nowshahr |
| Subdivision Type3: | Bakhsh |
| Subdivision Name3: | Central |
| Subdivision Type4: | Rural District |
| Subdivision Name4: | Kheyrud Kenar |
| Population As Of: | 2006 |
| Population Total: | 268 |
| Population Density Km2: | auto |
| Timezone: | IRST |
| Utc Offset: | +3:30 |
| Timezone Dst: | IRDT |
| Utc Offset Dst: | +4:30 |
| Coordinates: | 36.6167°N 51.55°W |
Sangtu (Persian: سنگتو, also Romanized as Sangtū) is a village in Kheyrud Kenar Rural District, in the Central District of Nowshahr County, Mazandaran Province, Iran. At the 2006 census, its population was 268, in 69 families.