The Tutsi (; ), or Abatutsi or Imfura, are an ethnic group 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. The Tutsi are the second largest population division among the three largest groups in Rwanda and Burundi, the other two being the Hutu (largest) and the Twa (smallest). Small numbers of Hema, Kiga and Furiiru people also live near the Tutsi in Rwanda. The Northern Tutsi that reside in Rwanda are called Ruguru (Banyaruguru), while southern Tutsi that live in Burundi are known as Hima, and the Tutsi that inhabit the Kivu plateau in the Congo go by Banyamulenge.