Bundibugyo District is a district in the Western Region of Uganda, bordering the Democratic Republic of the Congo (DRC). The town of Bundibugyo is where both the district headquarters and the Bwamba Kingdom seat (Obudhingiya Bwa Bwamba) are located. Before July 2010, the districts of Ntoroko and Bundibugyo were one. These districts are the only two in Uganda that lie west of the Rwenzori mountains. Bundibugyo (With Ntoroko) was first named Semuliki district on separating it from the Greator Kabarole district alongside Rwenzori district (Kasese) in 1974.