Mbuji-Mayi River

6°02′00″S 23°46′00″E / 6.03333°S 23.76667°E / -6.03333; 23.76667 The Mbuji-Mayi River, also spelt Bushmaie, Bushimaie, Bushimay or Mbushimaie, (Swahili: Mto Mbuji-Maji) is a river in the Democratic Republic of the Congo, a major tributary of the Sankuru River. It flows northwards from the Kapanga Territory in the province of Lualaba to the province of Kasaï-Oriental, where it is the namesake of the city of Mbuji-Mayi.

From the 17th to 19th centuries, the river formed one of the borders of the Kingdom of Lunda.