The management of Osun State University (UNIOSUN) has announced the passing of Professor Siyan Abdulgafar Oyeweso, Provost of the Postgraduate College, who died in the early hours of Tuesday, December 2, 2025, after a brief illness.
Professor Oyeweso was a renowned historian, administrator, and intellectual giant who made significant contributions to scholarship, institutional development, and national discourse. His death is a monumental loss to the institution, the academic community, and the nation at large.
In honour of Professor Oyeweso, the University has directed that all academic and administrative activities across its campuses be closed by noon today, Tuesday, to mourn the departed icon.
The Vice-Chancellor, Professor Odunayo Clement Adebooye, described Professor Oyeweso as a pillar of the academic structure, a mentor, a builder, and a shining example of scholarly excellence. “Osun State University is deeply pained by the sudden departure of Professor Siyan Oyeweso,” Professor Adebooye said.
Professor Oyeweso’s contributions to scholarship, institutional development, and national discourse remain indelible. He was a distinguished foundation scholar of UNIOSUN and had served in various capacities, including Provost of the Postgraduate College.
The University extends heartfelt condolences to the Oyeweso family, colleagues, associates, and the entire academic community, praying for comfort and strength during this difficult period.
Professor Oyeweso was a Fellow of the Nigerian Academy of Letters and had received numerous awards and honours for his outstanding contributions to education and scholarship.
He was also a prolific writer, having authored several books and over 200 academic publications. His research interests included military and strategic studies, cultural history, and Islamic intellectual traditions.
Professor Oyeweso’s legacy will continue to inspire future generations of scholars and academics. May his soul rest in peace.
