City (pop., 1996 est.: 476,800), Nigeria.
Located northeast of Ibadan , it lies along the Oshun River. Originally settled by the Ilesha from Ibokun, it remained a small town until the early 19th century when an influx of Yoruba fleeing from Fulani conquerors arrived. In 1840 it was the scene of a battle won by Ibadan that proved to be the turning point in the Fulani-Yoruba wars. It was made part of Oyo state in 1976 and the capital of the newly created state of Osun in 1991. It is a trade centre for cocoa and palm oil; weaving and dyeing cotton cloth and growing tobacco are other local occupations.