The Golok River (Thai: แม่น้ำโก-ลก, RTGS: Maenam Kolok, pronounced [mɛ̂ː.náːm koː.lók]; Malay: Sungai Golok) is a river that lies on the border between Malaysia and Thailand. It is spanned only by the Malaysian-Thai Friendship Bridge. The name of the river in Malay is Sungai Golok, meaning 'river of swords'.
The river borders the Malaysian state of Kelantan and the Thai province of Narathiwat. The friendship bridge connects the Malaysian town of Rantau Panjang and the Thai town of Su-ngai Kolok. Rantau Panjang is a duty-free zone.
The river flows into the Gulf of Thailand at Tak Bai District, Narathiwat Province. It floods seasonally with the monsoon. An unusually large flood occurred on 21 December 2009, causing an evacuation of parts of Kelantan.
- "Rantau Panjang & Golok River". Life in Penang, is more than beautiful. Retrieved 2010-09-07.
- "Golok river floods Kelantan forcing 440 to Evacuate". Demotix. Retrieved 2010-09-07.