Frank George Mario (b. February 25, 1921 in Esterhazy, Saskatchewan - d. June 18, 1995) was a professional ice hockey player who played 53 games in the National Hockey League. He played with the Boston Bruins.
He played junior hockey for the Regina Abbotts in 1939-40 and senior for the Regina Rangers in 1940-41, winning the Allan Cup that year. Mario played 9 games for the Boston Bruins in 1941-42 and also played for the Hershey Bears. He then played for the senior Cornwall Army team in 1942-43 and joined the Canadian military for 1943-44.
In the NHL he played in 53 games and scored 9 goals and 19 assists.
He then turned to coaching. His first job was with the senior Cornwall Colts in 1953-54. Later he coached the Regina Pats from 1956 to 1962, the Peterborough Petes from 1962 to 1965, and the Victoria Maple Leafs in 1965-66.