Pyin Oo Lwin or Pyin U Lwin, formerly Maymyo, is a scenic hill town in Mandalay Division, Myanmar, located in the Shan Highland, some 67 kilometers east of Mandalay, and at an altitude of 1,070 meters.The town began as a military outpost established near a small Shan village with two dozen households  situated on the Lashio-Mandalay trail between Nawnghkio and Mandalay. In 1896, a permanent military post was established in the town and later, because of its climate, it became a hill station and the summer capital of British Burma.
The establishment in Burma (civil, commercial and military) would move to Maymyo during the hot season to escape from the high heat and humidity of Rangoon. During British rule and through the 1970s, Maymyo had a large Anglo-Burmese population, but this steadily declined. During the Japanese occupation, as many Anglos were concentrated in and around Maymyo, the Japanese incarcerated many of them for fear of their loyalty to the British very close to Maymyo.
Today though, Maymyo still has one of the larger hold over populations of Anglo-Burmese in the country. The British named the location Maymyo, literally May's Town in Burmese, after Colonel May, a veteran of the Indian Rebellion of 1857 and commander of the Bengal Regiment temporarily stationed at the location of the town in 1887. The military government of Burma renamed the town Pyin U Lwin.