Thayet or Thayetmyo is a city in Thayet District of Magway Region in central Burma (Myanmar). It is a port on the right (western) bank of the Irrawaddy River, across and just south of Allanmyo,[1] between Pyay (Prome) and Magway. Thayet is the administrative seat of both Thayet District and Thayet Township. As of 2010, the population was estimated at 108,000.[2] In the 1960s limestone quarries a few miles south of Thayetmyo were developed to supply the town's cement factory.