Osun State University (UNIOSUN) is a multi-campus university in Nigeria, established by Osun State Government under the administration of Prince Olagunsoye Oyinlola.

The University currently operates six campuses distributed across the six administrative zones of the state.

It has its campuses in Osogbo, Ikire, Okuku, Ifetedo, Ipetu Ijesha and Ejigbo, which serves as campuses for Health science, Humanities and Culture, Social science and Management, Law, Education and Agriculture respectively.

Osun State University had its first convocation ceremony in 2011, under the administration of Ogbeni Rauf Aregbesola.

This article on a Nigerian institution of higher education is a stub.