Biduk
| Biduk-Biduk | |
|---|---|
| Labuan Cermin Lake | |
| Location within Berau Regency | |
| Coordinates: 1°14′56.6556″N 118°42′46.8864″E / 1.249071000°N 118.713024000°E | |
| Country | Indonesia | 
| Province | East Kalimantan | 
| Regency | Berau | 
| District seat | Biduk-Biduk | 
| Area | |
|  • Total | 2,429.97 km2 (938.22 sq mi) | 
| Population  (2024) | |
|  • Total | 8,140 | 
| • Density | 3.3/km2 (8.7/sq mi) | 
Biduk Biduk is a district (kecamatan) in Berau Regency, East Kalimantan, Indonesia. In the mid 2024 Estimate, it was inhabited by 8,140 people, and has a total area of 2,429.97 km2.