Kumai River
| Kumai River Sungai Kumai, Soengai Koemai | |
|---|---|
House on Kumai river, June 2015 | |
| Location | |
| Country | Indonesia |
| Physical characteristics | |
| Source | |
| • location | Central Kalimantan |
| Mouth | |
• location | Java Sea |
• coordinates | 2°56′15″S 111°43′56″E / 2.937456°S 111.732323°E |
| Length | 179 kilometres (111 mi) |
The Kumai River is a river of Central Kalimantan province, Borneo island, Indonesia.