The Tutsi (; ), or Abatutsi, are a population inhabiting the African Great Lakes region. Historically, they were often referred to as the Watutsi, Watusi, Wahuma or the Wahima. The Tutsi form a subgroup of the Banyarwanda and the Barundi peoples, who reside primarily in Rwanda and Burundi, but with significant populations also found in Uganda, the Democratic Republic of the Congo and Tanzania. They speak Rwanda-Rundi, a group of Bantu languages.