Details of his death are still sketchy but a family source is reported to have told Daily Trust that he died from COVID-19 complications.
The newspaper says it cannot independently verify this claim.
Odumakin played a key role in the National Democratic Coalition (NADECO) that fought the regime of General Sani Abacha after the annulment of the June 12, 1993 election.
He was also one of the spokespersons of the Southern and Middle Belt Leaders’ Forum (SMBLF), the body representing ethnic nationalities in the South-West, South-South, South-East and the Middle Belt.
Odumakin, who was married to another activist, Dr. Joe Odumakin, has been one of the strongest critics of the present government.
He has consistently taken on the Muhammadu Buhari-led Federal Government over alleged impartiality and favouritism in appointment into various offices.
His voice was also very loud in condemning the activities of some killers in Yorubaland.
He recently warned the Federal Government against arresting Sunday Igboho who recently issued a quit notice to the Fulani herders in Ibarapa Oyo State and subsequently ejected the Sarkin Fulani in Igangan.