The Sukuma are a Bantu ethnic group from the southeastern African Great Lakes region. They are the largest ethnic group in Tanzania, with an estimated 10 million members or 16 percent of the country's total population. Sukuma means "north" and refers to "people of the north." The Sukuma refer to themselves as Basukuma (plural) and Nsukuma (singular).

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.