Yaw River or Ywa River is a river of Burma, a tributary of the Irrawaddy. It flows into the Irrawaddy on the right (west) just above the town of Seikpyu,[1] at 20°54′13″N 94°48′39″E / 20.90361°N 94.81083°E.
The Yaw River forms when the Kyaw River and the Kabyu River flow together at 21°25′13″N 94°36′48″E / 21.42028°N 94.61333°E. It flows basically south with a slight trend eastward. It flows past the towns of Ledaing, Anauk Kabyu, and Dawtha with its major tributary, the Sada-on River, entering on the right just below Dawtha.[2]