The Monpa (Tibetan: མོན་པ།; Hindi: मोनपा, Chinese: 门巴族) are a major people of Arunachal Pradesh in northeastern India. Currently they are also one of the 56 officially recognized ethnic groups in China. Most Monpas live in the Indian state of Arunachal Pradesh, with a population of 50,000, centered in the districts of Tawang and West Kameng. Around 25,000 Monpas can be found in the district of Cuona in the Tibet Autonomous Region, where they are known as Menba (simplified Chinese: 门巴族; traditional Chinese: 門巴族; pinyin: Ménbāzú). Of the 45,000 Monpas who live in Arunachal Pradesh, about 20,000 of them live in Tawang district, where they constitute about 97% of the district's population, and almost all of the remainder can be found in the West Kameng district, where they form about 77% of the district's population. A small number of them may be found in bordering areas of East Kameng and Bhutan (2,500).

They also share very close affinity with the Sharchops of Bhutan. Their language belongs to the Tibeto-Burman family, but it is significantly different from the Eastern Tibetan dialect. It is written with the Tibetan script.