The James Norris Memorial Trophy is an annual award presented in the National Hockey League (NHL) to the defenseman who demonstrates outstanding ability in both offensive and defensive play. Named after James Norris, a former owner of the Detroit Red Wings, the trophy has been awarded since the 1953-54 NHL season. The winner is determined by a vote among the Professional Hockey Writers' Association at the end of each regular season. The trophy recognizes the importance of defensemen in the game and highlights their contributions to their teams' success.