Mary T. Washburn (August 4, 1907 - February 2, 1994) was an American athlete who competed mainly in the sprints. She attended DePauw University, graduating in 1928. She also graduated from NYU in 1929. She competed for the United States in the 1928 Summer Olympics held in Amsterdam, Netherlands in the 4 x 100 metres where she won the Silver medal with her team mates Jessie Cross, Loretta McNeil and Betty Robinson.