Tüdevtei (Mongolian: Түдэвтэй [ˌtʰʉtɪɸˈtʰe]), also spelt Tüdeutei or Tüdebhtei, is a sum of Zavkhan Province in western Mongolia. Sum centre is 17 km South of Oigon Lake. In 2005, its population was 2,003.

Administrative divisions

The district is divided into five bags, which are:

  • Argalant
  • Bayantsagaan
  • Oigon
  • Sharnuruu
  • Tsorgo

48°59′05″N 96°32′41″E/48.98472°N 96.54472°E/ 48.98472; 96.54472