| Lupar Sungai Batang Lupar | |
|---|---|
 Sunset at Lupar | |
  Location in Malaysia.  Lupar River (Asia) .svg) Lupar River (Earth) | |
| Native name | Batang Lupar (Malay) |
| Location | |
| Country | Malaysia |
| Physical characteristics | |
| Source | Klinkang Range |
| • location | Malaysia |
| Mouth | |
• location | South China Sea, Malaysia |
• coordinates | 1°30′51.6″N 110°58′58.7″E / 1.514333°N 110.982972°E |
• elevation | 0 m (0 ft) |
| Length | 275 km (171 mi) |
| Basin size | 6,558 km2 (2,532 sq mi) |
| Discharge | |
| • location | Sebuyau, Kampung Teriso, South China Sea (near mouth) |
| • average | 490 m3/s (17,000 cu ft/s) |
The Lupar River (Malay: Sungai Batang Lupar or Batang Lupar) is a river in Sarawak, Malaysia. The river mouth is located between Sebuyau and Kampung Teriso, in Sri Aman Division.