Sanni Olarewaju Okin was a member of the first republic parliament and vice president of the Ilorin branch of the NPC. He was later the provincial commissioner for Kabba province.
Okin was born in 1910 to the family of Braimoh Okin. He went to the C.M.S. Grammar School and later worked as a supervisor of accounts in Ilorin province. In the mid 1950s, he became the manager of schools for the Ilorin Native Authority.
As a member of the house, he was a parliamentary secretary to the minister of agriculture.