The Busa-Bisa of Nigeria, numbering approximately 19,500 people, are Engaged yet Unreached. They are described as the earliest rulers of the Borgu region, predating the Kisira migration whose leaders later made a pact and intermarried with the Boko-Busa at shared centers in Bussa, Nikki, and Illo, with neighboring Fulbe historically herding cattle on their behalf They are an Indigenous people, with Busa-Bisa as their ethnic/kinship group and are in the Mande people cluster of the Sub-Saharan African Peoples. Their primary religion is Folk Islam. They primarily speak Busa.