Chuba Wilberforce Okadigbo// (17 December 1941 – 25 September 2003), was a Nigerian philosopher, academic, writer and political scientist. He served as Senate president of Nigeria from 1999 to 2000. Okadigbo was sometimes referred to as Oyi of Oyi in reference to his local government council area (Oyi); he also held numerous political positions in the Nigeria government and was known to have opposed the ruling Peoples Democratic Party of Nigeria, which was led by President Olusẹgun Ọbasanjọ from the year 1999–2007.