Abwoi (Tyap ("Mabatado"): A̠bwoi, A̠boi. Variant spelling: Obwoi; (Gworok): A̠bvwoi, A̠bvoi; Jju: A̠bvwoi, A̠bvoi; Hyam: Ku; Nghan: Nezhen; Hausa: Dodo) is an African traditional religion institution which operated more like a cult of male ancestral spirits viewed as ghosts or reincarnates of the dead, whose physical forms remained invisible but voices audible, with origins among the central Nigeria plateau or Nenzit peoples such as the Adara, Atyap, Bajju, Bakulu, Batinor, Ham, Irigwe and others.