| Batu Apoi Forest Reserve Batu Apoi National Park | |
| Map: | Brunei |
| Relief: | 1 |
| Nearest City: | Brunei Darussalam |
| Coordinates: | 4.6°N 115.1833°W |
| Established: | 1991 |
Batu Apoi Forest Reserve is located in Batu Apoi in the Temburong District of Brunei. The Ulu Temburong National Park is located within the reserve.[1] Its mountains reach altitudes of around its southeastern borders. The region features the shale lithology known as Setap Shale, and sometimes as Temburong Formation. River channels, V-shaped valleys, and mixed Dipterocarp rainforest also characterize the forest reserve.[2]