Theinni or Hsenwi (Shan: သႅၼ်ဝီ; Burmese: သိန္နီ, pronounced [θèiɰ̃nì]; Thai: แสนหวี, RTGS: Saen Wi, pronounced [sɛ̌ːn wǐː]) is a town in northern Shan State of Burma, situated near the north bank of the Nam Tu River and now the centre of Hsenwi Township in Lashio District. It is 28 miles (45 km) north of Lashio. It is 2,100 feet (640 m) above sea level.