O. C. Gray (October 10, 1871 – June 21, 1955) was a politician in Ohio. He served as Speaker of the Ohio House of Representatives.
He was born in Belmont County, Ohio. He attended Scio College and the University of Michigan. A Republican and a Methodist he served as auditor and tax assessor. First elected in 1922, he served four terms in the Ohio House.[1] He lived in Cadiz, Ohio.[2] He was succeeded as Speaker by Arthur Hamilton.[3]