Frank Sellick Calder - Born November 17, 1877 in Bristol, England - Died February 4, 1943 in Montreal, Quebec was an ice Hockey executive, a journalist and athlete.

Calder is most notable for serving as the first president of the National Hockey League / NHL from 1917 until his death in 1943.

Calder was the last president of the NHL's predecessor league, the National Hockey Association / NHA and was instrumental in the transition from the NHA to the NHL, a transition made to expel a franchise owner.

Calder presided over the expansion of the NHL from Canada into the United States -

Two trophies in Professional Hockey are named for him—the NHL Calder Memorial Trophy for NHL rookies and the Calder Cup for the American Hockey League (AHL) championship. He originated the rookie of the year award, and the NHL decided to continue awarding it after Calder died, renaming it from the Calder Trophy to the Calder Memorial Trophy.

Frank Calder was inducted into the Hockey Hall of Fame in 1947 as a builder.