Omweso is the traditional mancala game of the Ugandan people. The game was supposedly introduced by the Bachwezi people of the ancient Bunyoro-kitara empire of Uganda. Nowadays the game is dominated by Ugandan villagers. It is a very hard and fast game said to keep one's mind high and ever excited, which can make it addictive. The equipment needed for the game is essentially the same as that of the Bao game. Omweso is strictly related to a wide family of mancalas found in eastern and southern Africa; these include Coro in the Lango region of Uganda, Aweet in Sudan, ǁHus in Namibia, Kombe in Lamu (Kenya), Mongale in Mombasa (Kenya), Mongola in Congo, Igisoro in Rwanda, and Kiela in Angola.

Mancala refers to a family of two-player turn-based strategy board games played with small stones, beans, or seeds and rows of holes or pits in the earth, a board or other playing surface. The objective is usually to capture all or some set of the opponent's pieces.