Alvin Victor Donahey (also known as A. Victor Donahey, A. Vic Donahey, Vic Donahey, or A. V. Donahey) (July 7, 1873 - April 8, 1946) was a Democratic politician from Ohio. Donahey was the 50th Governor of Ohio.

Born in Cadwallader , Tuscarawas County, Ohio, Donahey served as County Auditor from 1905-1909. After serving as a delegate to the 1912 Constitutional Convention, Donahey briefly served as State Auditor from 1913-1921. He did not seek re-election in 1920, running instead for Governor. Donahey lost that election but won the position two years later, serving three terms from 1923-1929. He did not run for re-election in 1928. He won election to the U.S. Senate in 1934, and served one term from 1935-1941, before retiring.

Donahey's son, John W. Donahey, served a term as Lieutenant Governor of Ohio. His daughter-in-law, Gertrude Walton Donahey served as Ohio State Treasurer.