Kasai-Oriental is a province of the Democratic Republic of Congo. Its provincial capital is Mbuji-Mayi. It borders Kasai-Occidental to the west, Equateur to the north-west, Orientale to the north-east, Maniema to the east, and Katanga to the south.
It is in the north of the country, and borders the Republic of the Congo to the west, the Central African Republic to the north, to the east the province of Orientale, and to the south the provinces of Kasai-Oriental, Kasai-Occidental, and Bandundu.
It borders Kasai-Oriental to the west, Orientale to the north, Nord-Kivu and Sud-Kivu to the east, and Katanga to the south.