Shompen, or Shom Peng is a language or group of languages spoken on Great Nicobar Island in the Indian union territory of the Andaman and Nicobar Islands, in the Indian Ocean, northwest of Sumatra, Indonesia. Partially because the native peoples of the Andaman and Nicobar Islands are protected from outside researchers, Shompen is poorly described, with most descriptions being from the 19th century and a few more recently but of poor quality. Shompen appears to be related to the other Southern Nicobarese varieties, however Glottolog considers it a language isolate.