Tonlé Sap River
| Tonlé Sap | |
|---|---|
| Tonlé Sap river in Phnom Penh | |
| Etymology | Fresh water river | 
| Native name | ទន្លេសាប (Khmer) | 
| Location | |
| Country | Cambodia | 
| Provinces | Kampong Thom province, Kampong Chhnang province, Kampong Cham province, Kandal province, Phnom Penh | 
| Physical characteristics | |
| Source | Tonlé Sap Lake | 
| Mouth | Mekong | 
|  • location | Phnom Penh | 
|  • coordinates | 11°33′48″N 104°56′20″E / 11.56344°N 104.93901°E | 
| Length | 147 kilometres (91 mi) | 
| Basin features | |
| Tributaries | |
| • left | Steung Saen River, Chinit River | 
| Bridges | Prek Kdam Bridge, Prek Pnov Bridge, Chroy Changvar Bridge | 
| Inland ports | Phnom Penh Autonomous Port | 
Tonlé Sap (Khmer: ទន្លេសាប) is a river in Cambodia that connects the Tonlé Sap lake with the Mekong river. The river is known for its unusual seasonal reversal, which plays a crucial role in supporting biodiversity, sustaining local livelihoods, enhancing agricultural productivity, and contributing to the ecological, economic, and cultural vitality of the region.