Trevor Letowski (born April 5, 1977) is a Canadian former professional ice hockey winger. He was selected in the seventh round, 174th overall, by the Phoenix Coyotes in the 1996 NHL entry draft. Letowski also played for the Vancouver Canucks, Columbus Blue Jackets, and Carolina Hurricanes. Following retirement from active play, he served as head coach of the Sarnia Sting and Windsor Spitfires in the Ontario Hockey League (OHL) as well as an assistant coach with the Montreal Canadiens in the National Hockey League (NHL).
Letowski began his career playing major junior for the Sarnia Sting of the Ontario Hockey League (OHL) where he was named as his team's Rookie of the Year for their 1994–95 season. He was then selected in the seventh round, 174th overall, by the Phoenix Coyotes in the 1996 NHL entry draft.
After his third and final OHL season with the Sting, Letowski spent the 1997–98 season with the Springfield Falcons, American Hockey League (AHL) affiliate of the Coyotes. He made his NHL debut during the 1998–99 season and became a regular in the Coyotes lineup, playing two full seasons thereafter. Midway through the 2001–02 season, Letowski was traded by the Coyotes, along with Todd Warriner and Tyler Bouck, to the Vancouver Canucks in exchange for Drake Berehowsky and Denis Pederson on December 28, 2001.
Letowski was signed by the Columbus Blue Jackets as a unrestricted free agent on July 3, 2003, and played two seasons for the Jackets split by a term in Switzerland with HC Fribourg-Gottéron of the Swiss Nationalliga A during the 2004–05 NHL lockout. He then joined the Carolina Hurricanes as a free agent on July 6, 2006 and played there for two seasons.
During a game against the Pittsburgh Penguins on October 14, 2006, Letowski was hit by the Penguins' Colby Armstrong following a pass in the Penguins' zone and was knocked unconscious and removed from the ice on a stretcher; there was no penalty assessed on the play.
In August 2008, Letowski joined Kazakhstani-based club Barys Astana of the Kontinental Hockey League (KHL) as a free agent. Following the conclusion of the 2009–10 season, he announced his retirement from active play.
Letowski won a gold medal with Team Canada at the 1997 World Junior Ice Hockey Championships held in Geneva, Switzerland.
Letwoski returned to where he began his playing career taking up an assistant coaching role with the Sarnia Sting on April 17, 2010 for the 2010–11 season. However, on February 6, 2011, Dave MacQueen was fired as head coach and GM whereas Letowski took over serving as interim head coach. In 18 games as head coach, the Sting went 7–10–1, and ultimately missed the playoffs for the second straight season. He returned to his assistant position under the Sting's next head coach, Jacques Beaulieu, in 2011–12 before being promoted to head coach on June 14, 2013.
On July 9, 2015, Letowski was hired by the Windsor Spitfires as their assistant coach, after previous assistant coach Bob Jones was hired by the Oshawa Generals. After two seasons, he was promoted to head coach of the Spitfires in 2017 when Rocky Thompson left to become the head coach of the Chicago Wolves in the American Hockey League (AHL).
In July 2021, Letowski was hired by the Montreal Canadiens of the National Hockey League (NHL) as an assistant coach. Following five seasons with the Canadiens organization, it was announced that he had stepped away from his role in July 2026.
Biographical information and career statistics from NHL.com, or Eliteprospects.com, or Eurohockey.com, or Hockey-Reference.com, or The Internet Hockey Database