The Kwa Ibo River (also Quaibo River) is a river that rises near Umuahia in Abia State, Nigeria, and flows in a southeastern direction through Akwa Ibom State to the Atlantic ocean. The river runs through the grounds of the Michael Okpara University of Agriculture in Umudike. The river feeds a zone of mangrove swamps linked by creeks and lagoons that is separated from the sea by a low and narrow ridge of sand. Ibeno, on the eastern side of the Kwa Ibo River about from the river mouth, is one of the largest fishing settlements on the Nigerian coast.