The Norm Fieldgate Trophy is a Canadian Football League trophy awarded to the outstanding defensive player in the West Division. Each team in the West division nominates a player, from which the winner is chosen. Either the winner of this trophy or the winner of the James P. McCaffrey Trophy will also be the winner of the Canadian Football League Most Outstanding Defensive Player award. The trophy is named after former BC Lions linebacker Norm Fieldgate.

As part of the failed American expansion, the Fieldgate trophy was awarded in 1995 to the North Division's outstanding defensive player.

Prior to 1974 the CFL's Most Outstanding Lineman Award was awarded to both outstanding defensive players and outstanding linemen in the West Division.

Norm Fieldgate Trophy winners

CFL's Most Outstanding Lineman Award in the West Division prior to the 1974

1957 – Art Walker (OT/DG), Edmonton Eskimos 1958 – Don Luzzi (DT), Calgary Stampeders 1959 – Roger Nelson (OT), Edmonton Eskimos 1960 – Herb Gray (DE), Winnipeg Blue Bombers 1961 – Frank Rigney (OT), Winnipeg Blue Bombers 1962 – Wayne Harris (LB), Calgary Stampeders 1963 – Tom Brown (LB), British Columbia Lions 1964 – Tom Brown (LB), British Columbia Lions1965 – Wayne Harris (LB), Calgary Stampeders 1966 – Wayne Harris (LB), Calgary Stampeders 1967 – Ed McQuarters (DT), Saskatchewan Roughriders 1968 – Ted Urness (C), Saskatchewan Roughriders 1969 – John LaGrone (DT), Edmonton Eskimos 1970 – Wayne Harris (LB), Calgary Stampeders 1971 – Wayne Harris (LB), Calgary Stampeders 1972 – John Helton (DT), Calgary Stampeders 1973 – Ray Nettles (LB), British Columbia Lions