Most goals in one nhl game by a player?
No context provided
Most goals scored in one nhl game by a player?
7
In addition to being first, Joe Malone holds the overall record with five different five-or-more goal games, including the NHL record seven goals in a game, as well as a six-goal game and three five-goal games – all in the first three seasons of the NHL’s existence. He is also the only player to record a five-goal game with more than one team, accomplishing his first three with the Montreal Canadiens and his last two with the Quebec Bulldogs.
Most goals in one nhl game by which player?
Joe Malone
List of players with five or more goals in an NHL game
Ice hockey statistics
https://en.wikipedia.org/wiki/Ice%20hockey%20statistics
List of players with five or more goals in an NHL game
https://en.wikipedia.org/wiki/List%20of%20players%20with%20five%20or%20more%20goals%20in%20an%20NHL%20game
List of NHL statistical leaders
https://en.wikipedia.org/wiki/List%20of%20NHL%20statistical%20leaders
Scoring five or more goals in a single game is considered a great feat, as it has only been accomplished 62 times, by 46 players, in the history of the league.[1] The first player to do so was Joe Malone, with the Montreal Canadiens, in the first NHL game, on December 19, 1917. 
List of players with five or more goals in an NHL game
He is the only player in the history of the NHL to score seven goals in a single game, accomplishing the feat in 1920.
Joe Malone (ice hockey)
The first player to score five or more goals in a single game so was Joe Malone, with the Montreal Canadiens, in the first NHL game, on December 19, 1917. He is the only player in the history of the NHL to score seven goals in a single game, accomplishing the feat in 1920.