Oyo can refer to: Places In Nigeria The Oyo Empire or Kingdom, a former West-African empire that covered parts of modern-day Nigeria and Benin Oyo State, a present-day state of Nigeria named after the Oyo Empire Oyo, Nigeria, a city in Oyo State founded in the 1830s as the capital of the Oyo Kingdom In the Republic of the Congo Oyo, Congo, a city in the Cuvette Region Other uses Ottawa Y Olympians Swim Club (OYO), an amateur competitive swim club in Ottawa, Ontario, Canada Oyo Boy Sott… (More on Oyo)