The Arusha (Waarusha in Swahili) people are a Bantu ethnic and indigenous group based in the western slopes of mount Meru in Arusha District of Arusha Region in Tanzania. The Maasai regard the Arusha people as related as they were once a part of the immigrant Maasai society that arrived in Arusha in the 18th century from Kenya. The Arusha people are not to be confused by Arusha residents who are Tanzanian people of different ethnic backgrounds that are born and reside within the borders of the Arusha Region.