| Lio Matoh | |
| Coordinates: | 3.1667°N 115.2333°W |
| Pushpin Map: | Borneo |
| Pushpin Label Position: | right |
| Subdivision Type: | Country |
| Subdivision Name: |  Malaysia |
| Subdivision Type1: | State |
| Subdivision Type2: | Administrative Division |
| Subdivision Name2: | Marudi |
| Elevation M: | 1802 |
Lio Matoh (also known as Lio Matu) is a remote Kenyah Badeng longhouse settlement in the mountainous interior of the Marudi division of Sarawak, Malaysia, not far from the border with Indonesia. It lies approximately 572.6km (355.8miles) east-north-east of the state capital Kuching.
Travel to Lio Matoh involves a four-hour 4WD drive from Long San, or it is possible to trek between Lio Matoh and Bario, but it takes seven to nine days. The Baram River begins as a stream near Bario, and it flows through Lio Matoh, the highest that small boats can navigate. It is possible to travel downriver from Lio Matoh by longboat: it takes two days to get to Long San by this method.
Neighbouring settlements include: