Corwin M. Nixon (March 5, 1913 – November 6, 2003) was an American politician.

He served as Warren County Commissioner from 1950–1962, and was then elected to the Ohio House of Representatives in 1962, a post he maintained for 30 years until his retirement in 1992.

Much of Corwin's status stemmed from his close relationship to Ohio House Speaker Vern Riffe.

"[1] His relationship with Speaker Riffe, a Democrat, caused some consternation with the conservative wing of the Republican members of the Ohio House, however, his relationship gave him tremendous influence as a Republican.

He was inducted into the Harness Racing Museum & Hall of Fame in Goshen, New York.