| Official Name: | Oja-Beyt |
| Native Name: | جاءبِيت |
| Settlement Type: | town |
| Pushpin Map: | Iran |
| Mapsize: | 150px |
| Subdivision Type: | Country |
| Subdivision Type1: | Province |
| Subdivision Name1: | Mazandaran |
| Subdivision Type2: | County |
| Subdivision Name2: | Chalus |
| Subdivision Type3: | Bakhsh |
| Subdivision Name3: | Kelardasht |
| Population As Of: | 2006 |
| Population Total: | 4768 |
| Population Density Km2: | auto |
| Timezone: | IRST |
| Utc Offset: | +3:30 |
| Timezone Dst: | IRDT |
| Utc Offset Dst: | +4:30 |
| Coordinates: | 36.5167°N 51.1667°W |
| Elevation M: | 1372 |
Oja-Beyt also known as جاءبِيت is a town in Chalus County, Iran.[1] It is located at latitude 36° 29' 28" N and longitude 51° 08' 36" E. It lies at an altitude of 1372 metres in the Alborz mountains, 50 km to the north of Tehran, and 25 km south of the Caspian Sea.[2]
The population is 476, and it is near the Alam-Kuh mountain and Sardab River.