Gyaing River[1] (Burmese: ဂျိုင်းမြစ်) is a river of Kayin State and Mon State, in southeastern Burma (Myanmar). Its two major tributaries, the Hlaingbwe River and the Haungtharaw River, flow together to form the Gyaing[2] at 16.6033°N 98.0069°W.[3] It is about long and flows into the Salween River immediately above Moulmein, at 16.5153°N 97.6267°W (its mouth).
The Gyaing is a wide river, but quite shallow with numerous sandbars. It is navigable by smaller boats all year long. Important towns and villages along its banks include Gadoe (Kado), Zathabyin (Zathabyeng),[4] Kalagong, Kawbein, Peinnegon,[5] Tarana[6] and Damathat (Dhammatha). The up-stream Gyaing forms part of the border between Hpa-an District and Kawkareik District of Kayin State, and downstream is the border between Kayin State and Mon State.[1]
