Ogbomosho (ōbōˈmôshô, ŏgbōmōˈshō) [key], city (1991 pop. 644,000), SW Nigeria. It is the trade center for a farming region. Yams, cassava, corn, and tobacco are grown. Cotton is grown and used to weave cloth. Ogbomosho was founded in the 17th cent. It resisted Fulani invasions in the early 19th cent. and grew by absorbing refugees from towns destroyed by the Fulani. A teachers college is in the city.