Bill Mosienko, Canadian ice hockey player and coach (d. 1994)
William Mosienko (November 2, 1921 – July 9, 1994) was a Ukrainian Canadian professional ice hockey right winger who played 14 seasons in the National Hockey League (NHL) for the Chicago Black Hawks. He is best noted for recording the fastest hat trick in NHL history. In a 1952 game against the New York Rangers, Mosienko scored three goals in 21 seconds.

In the NHL, Mosienko won the Lady Byng Memorial Trophy in 1945 as the most gentlemanly player in the league, played in five All-Star Games and was twice named to the second All-Star Team. He left the league in 1955 to help bring professional hockey to his hometown of Winnipeg. He helped create the Winnipeg Warriors of the Western Hockey League and was a three-time All-Star in his four years of play in the league. He won the league championship in 1956.

Mosienko was inducted into the Hockey Hall of Fame in 1965 and into the Manitoba Sports Hall of Fame and Museum in 1980.

In October 2021, a book about Mosienko's life titled "Mosienko: The Man Who Caught Lightning In A Bottle" by Ty Dilello is set to be released by Great Plains Publications.