There are numerous ethnic groups in Bhutan, and no one group constitutes a majority of the Bhutis. The Bhutis comprises four main ethnic groups, which themselves are not necessarily exclusive: the politically and culturally dominant Ngalop of western and northern Bhutan; the Sharchop of eastern Bhutan; the Lhotshampa concentrated in southern Bhutan; and Bhuti tribal and aboriginal peoples living in villages scattered throughout Bhutan.
The Ngalop (meaning "earliest risen" or "first converted" according to folk etymology) are people of Tibetan origin who migrated to Bhutan as early as the ninth century. For this reason, they are often referred to in literature as "Bhote" (people of Bhutia/Bhotia or Tibet). The Ngalop introduced Tibetan culture and Buddhism to Bhutan and comprised the dominant political and cultural element in modern Bhutan. Their language, Dzongkha, is the national language and is descended from Old Tibetan. The Ngalop are dominant in western and northern Bhutan, including Thimphu and the Dzongkha-speaking region. The term Ngalop may subsume several related linguistic and cultural groups, such as the Kheng people and speakers of Bumthang language.
The Sharchop (meaning "easterner"), are the populations of mixed Tibetan, South Asian and Southeast Asian descent that mostly live in the eastern districts of Bhutan. Van Driem (1993) indicates the Sharchop and closely related aboriginal Monpa (Menba) are descendants of the plurality ethnicity of Bhutan and the principal pre-Tibetan (pre-Dzongkha) people of that country. The Sharchop comprise most of the population of eastern Bhutan. Although long the biggest single ethnic group in Bhutan, the Sharchop have been largely assimilated into the Tibetan-Ngalop culture. Most Sharchop speak Tshangla, a Tibeto-Burman language. Because of their proximity to India, some speak Assamese or Hindi. They traditionally practice slash-and-burn and tsheri agriculture, planting dry rice crops for three or four years until the soil is exhausted and then moving on, however the practice has been officially banned since 1969.