Martin "Marty" Maher, Jr. (June 25, 1876 – January 17, 1961) was an Irish immigrant from Ballycrine near Roscrea, County Tipperary, Ireland, who joined the United States Army in 1898 and rose to the rank of master sergeant. He served as a swimming instructor at the United States Military Academy, West Point, New York, from 1899 to 1928.
