The Hart Memorial Trophy is an annual award given to the player judged to be the most valuable to his team. The winner is selected in a poll of the Professional Hockey Writers' Association in all NHL cities at the end of the regular season. The Hart Memorial Trophy was presented by the National Hockey League in 1960 after the original Hart Trophy was retired to the Hockey Hall of Fame. The original Hart Trophy was donated to the NHL in 1923 by Dr. David A. Hart, father of Cecil Hart, former manager-coach of the Montreal Canadiens. Wayne Gretzky won the award a record nine times during his career, eight consecutively. Gretzky and his Edmonton Oilers teammate Mark Messier are the only players to win the Hart Trophy with more than one team. In 1990, Mark Messier took the Hart over Ray Bourque by a margin of two votes, the difference being a single first-place vote. Players from the Montreal Canadiens have won the award sixteen times; players from Boston Bruins are second with twelve winners, and the Detroit Red Wings and Edmonton Oilers have seen players win the award nine times. Joe Thornton became the first Hart Trophy winner to switch clubs during his winning campaign in 2005–06 NHL season, having played for both the Boston Bruins and San Jose Sharks that year. The voting is conducted at the end of the regular season by members of the Professional Hockey Writers Association, and each individual voter ranks their top five candidates on a 10-7-5-3-1 points system. Three finalists are named and the trophy is awarded at the NHL Awards ceremony after the playoffs. The closest the voting for the Hart Trophy has ever come was in the 2001–02 season, when Jose Theodore and Jarome Iginla tied in the total voting. The tiebreaker for choosing the Hart Trophy winner in such a case is number of first-place votes: Theodore, who had 86 first-place votes to Iginla's 82, claimed it.

The Hart Memorial Trophy was presented by the National Hockey League in 1960 after the original Hart Trophy was retired to the Hockey Hall of Fame. The original Hart Trophy was donated to the NHL in 1923 by Dr. David A. Hart, father of Cecil Hart, former manager-coach of the Montreal Canadiens.