Pran Buri River

The Pran Buri River (แม่น้ำปราณบุรี,, ) is a river in Prachuap Khiri Khan Province, Thailand, on the Kra Isthmus of the Malay Peninsula. The Pran Buri River originates in southern part of the Kaeng Krachan National Park in the Tenasserim Hills and after 130 km empties into the Gulf of Thailand. The only town along the river course is Pran Buri, the center of the Pran Buri District. The watershed of the Pran Buri River has an area of about 2000 km2.

The Pran Buri dam was built in 1978, to protect lowlands from flooding as well as to have steady water flow for irrigation. The 42 m high and 1500 m wide earthen dam creates an artificial lake, which covers 35.2 km2 and has a capacity of 445 e6m3.

At the river's estuary at the Gulf of Thailand is Pran Buri Forest Park, covering 3.17 km2 of mixed forest and mangrove forest. It was created in 1982.