| Sibungor Island | |
| Native Name: | Pulau Sibungor |
| Native Name Lang: | Bahasa Melayu |
| Elevation Ft: | 3 |
| Pushpin Map: | Brunei |
| Pushpin Map Caption: | Location in Brunei |
| Coordinates: | 4.8664°N 114.9542°W |
| Country: | Brunei |
| Location: | Brunei River |
| Country Admin Divisions Title: | District |
| Country Admin Divisions: | Brunei-Muara |
| Country Admin Divisions Title 1: | City |
| Country Admin Divisions 1: | Bandar Seri Begawan |
| Population: | 0 |
| Length M: | 660 |
| Archipelago: | Malay Archipelago |
Sibungor Island is an islet on the Brunei River in Brunei-Muara District, Brunei. A proposal for an protection status to be implemented on the island.[1] The island is home to proboscis monkeys and forest swamps.
The islet sits at the confluence of the Brunei River and Butir River, with two navigational beacons located westwards.[2] Moreover, an anchorage is also used west of Sibungor.[3]