The Aba River is a river in southern Nigeria. It runs through the city of Aba, Nigeria. It is a tributary of the Imo River. Its headwaters are in Okpu-Umuobo in the Ngwa heartland into the Aba City.
Coordinates: 4°49′22″N 7°29′27″E / 4.8228°N 7.4909°E