The Moa River (Makona River) is a river in west Africa. It arises in the highlands of Guinea and flows southwest, forming parts of the Guinea–Liberia and the Guinea – Sierra Leone borders. It flows into the Southern Province of Sierra Leone. Yenga, Tiwai Island and Sulima are located on the Moa.
Coordinates: 7°01′09″N 11°32′29″W / 7.0192°N 11.5413°W