The Nyamwezi, or Wanyamwezi, are one of the Bantu groups of East Africa. They are the second-largest ethnic group in Tanzania. The Nyamwezi people's ancestral homeland is in parts of Tabora Region, Singida Region, Shinyanga Region and Katavi Region. The term Nyamwezi is of Swahili origin, and translates as "people of the moon" or "people of the west", the latter being more meaningful to the context.

The Bantu peoples are an ethnolinguistic grouping of approximately 400 distinct native African ethnic groups who speak Bantu languages. The languages are native to 24 countries spread over a vast area from Central Africa to Southeast Africa and into Southern Africa.