| Official Name: | Biduiyeh-ye Kajin |
| Native Name: | بيدوئيه كجين |
| Settlement Type: | village |
| Pushpin Map: | Iran |
| Mapsize: | 150px |
| Subdivision Type: | Country |
| Subdivision Type1: | Province |
| Subdivision Name1: | Hormozgan |
| Subdivision Type2: | County |
| Subdivision Name2: | Hajjiabad |
| Subdivision Type3: | Bakhsh |
| Subdivision Name3: | Ahmadi |
| Subdivision Type4: | Rural District |
| Subdivision Name4: | Kuh Shah |
| Population As Of: | 2006 |
| Population Total: | 100 |
| Population Density Km2: | auto |
| Timezone: | IRST |
| Utc Offset: | +3:30 |
| Timezone Dst: | IRDT |
| Utc Offset Dst: | +4:30 |
| Coordinates: | 28.1631°N 56.735°W |
Biduiyeh-ye Kajin (fa|بيدوئيه كجين, also Romanized as Bīdū’īyeh-ye Kajīn; also known as Bīdū’īyeh) is a village in Kuh Shah Rural District, Ahmadi District, Hajjiabad County, Hormozgan Province, Iran. At the 2006 census, its population was 100, in 19 families.