Sambu (also known as Sambo, Sambos, Wambu, or Huambo) was one of the traditional independent Ovimbundu kingdoms in Angola.

• Childs, Gladwyn M. (1964), "The Kingdom of Wambu (Huambo): A Tentative Chronology", The Journal of African History, vol. 5, no. 3, Cambridge University Press, pp. 367–379, doi:10.1017/S0021853700005077, JSTOR 179973