The Nama tribe is a Khoisan or Khoi ethnic group, and is considered the original settlers or people in Southern Africa, before the so called bantu expansion, and later European groups they are related to the San, however unlike the San who nomadic, the khoi were farmers.
Like the himba above most of the Nama tribe lives in the modern nation states of namibia, however you can find these tribe in Botswana and South Africa as well. Since there genetic signature is supposely diverse, some evolutionist believe that the San were the original humans, Needless to say, I don't subscribe to evolution, therefore i will keep my opinion to myself, and be objective here.