Gertrude Walton Donahey (August 4, 1908 – July 11, 2004) was an American politician of the Democratic party who served as Ohio State Treasurer from 1971 to 1983.
Donahey, born in Goshen Township, Tuscarawas County, Ohio, was the first woman to be elected to a statewide executive office in Ohio, and second to Ohio Supreme Court judge Florence Ellinwood Allen. Her husband, John W. Donahey, served for a time as Lieutenant Governor of Ohio. Her father-in-law, A. Victor Donahey, was a Governor of Ohio and a member of the United States Senate.
She died in Bexley, Ohio, a suburb of Columbus, aged 95.