Mikołaj Nicholas "Nick" Harbaruk (August 16, 1943 – March 10, 2011) was a professional ice hockey player. Harbaruk played 364 games in the National Hockey League (NHL) and 181 in the World Hockey Association (WHA). Harbaruk played for the Pittsburgh Penguins, St. Louis Blues, and Indianapolis Racers.

Harbaruk was of Ukrainian descent, born in Poland and immigrated to Toronto, Ontario at the age of five. Harbaruk died from bone cancer on March 10, 2011, at the age of 67.^[1] At the time of his death, he was survived by his wife, Nancy, and two daughters.

Prior to his NHL career, Harbaruk played three seasons with the Toronto Marlboros and helped the Marlies win the 1964 Memorial Cup. Harbaruk then spent five seasons with the Tulsa Oilers, a minor league affiliate of the Toronto Maple Leafs, where he got a college degree. Harbaruk was claimed by the Penguins in the 1969 Intra-league draft. Harbaruk played four seasons with the Penguins. In October 1973 he was traded to the St. Louis Blues. After one season with the Blues, Harbaruk then joined the WHA and spent 2-1/2 seasons with the Indianapolis Racers. Harbaruk also played in the minors with Vancouver Canucks, Oklahoma City Blazers, Pittsburgh Hornets and Rochester Americans. After retiring from active play, Harbaruk became the coach of Seneca College in Toronto.