Matthew Keith Moulson (born November 1, 1983) is a Canadian former ice hockey left winger.

Moulson played 650 games in the National Hockey League (NHL), the majority of which were spent with the New York Islanders and Buffalo Sabres.

[4] He was a leading scorer in the NHL pre-season and made the team out of camp as a linemate of John Tavares.

On July 27, 2010, Moulson signed a one-year, $2.45 million contract extension with the Islanders just minutes before his arbitration hearing was scheduled to begin.

On May 16, 2013, Moulson was named a finalist, along with Patrick Kane and Martin St. Louis, for the Lady Byng Memorial Trophy, awarded annually to the player adjudged to have exhibited the best type of sportsmanship and gentlemanly conduct combined with a high standard of playing ability.

On October 27, 2013, Moulson and a 2015 first- and second-round draft pick were traded by the Islanders to the Buffalo Sabres in exchange for Thomas Vanek.

[9] After a difficult 2015–16 season that saw Moulson struggle under new Sabres coach Dan Bylsma and score a career-low 21 points (8 goals and 13 assists), he was rumored to be a buyout candidate.