John Trevor Fahey (born January 4, 1944) is a retired Canadian professional ice hockey left winger who played in one National Hockey League game for the New York Rangers during the 1964–65 NHL season.
Fahey was assigned to the Tillsonburg Mavericks of the Western Ontario Hockey League for the 1960-61 season. He was called up at the end of the season to play with the Guelph Royals in the playoffs alongside the likes of future NHL players Rod Gilbert, Jean Ratelle, and Bob Plager.
Following his playing career, Fahey published two hockey books entitled "All About Hockey" (1974) and "Hockey: Canadian/Soviet" (1977). He served as head coach of the Brandon Bobcats of the Great Plains Athletic Conference, leading team to a championship in 1975. He was later named athletic director at Brandon University. Fahey founded the Coach International Hockey Schools in Manitoba in 1980. He moved to Florida in 1995 and was instrumental in starting the Tampa Bay Raiders Minor Hockey Association.
In 2012, he was inducted into the Cape Breton Sports Hall of Fame during the Cape Breton Sport Heritage Awards ceremony at Centre 200. He currently resides in Tampa Bay and continues to coach hockey.