John Odigie Oyegun was born on August 12, 1939, in Warri, Delta State. He attended St. Patrick’s College, Asaba, and then went to the University of Ibadan where he obtained a Bachelor’s degree in Economics. He then served in various capacities as a federal civil servant working as a development planner.
Chief John Oyegun was elected as civilian governor of Edo State on the SDP platform, during the transition to democracy aunched by General Ibrahim Babangida and served from January 1992 to November 1993.
He was removed from office after General Sani Abacha seized power. Later, he became a leader of the All Nigeria Peoples Party (ANPP). In 2009 he was chairman of the Technical Working Committee of CODER.