Robert Louis "Bob" Fillion (born July 12, 1920) is a Canadian former professional ice hockey player who played 7 years for the Montreal Canadiens of the NHL. He won 2 Stanley Cups in his Career with Montreal in 1944 and 1946. He also spent time with the Buffalo Bisons of the AHL and the Sherbrooke Saints of the QSHL. He was born in Thetford Mines, Quebec.
He started out with the junior Verdun Maple Leafs from 1938-40 and then played three seasons of senior hockey. In 1943 he made the Montreal Canadiens as a defensive specialist. He played for them for seven seasons, scoring 42 goals and 61 assists in 327 regular season games.