Stephen Trask (born 1967) is an American musician and composer, who graduated from Wesleyan University.

He was the music director and house band member at the New York club Squeezebox, where he performed with stars such as Debbie Harry, Lene Lovich and Joey Ramone.

Trask composed the music and lyrics for the off-Broadway stage musical Hedwig and the Angry Inch (also a 2001 film), about a transsexual rock star named Hedwig. Trask's real-life band Cheater performed as Hedwig's band "The Angry Inch". He received an Obie Award for the play and a Grammy award nomination for the movie.

He has done five films with filmmaker Paul Weitz. He composed the score for 2004's In Good Company and American Dreamz, for which he also co-wrote the numerous songs the contestants sing, as well as the 2009 film Cirque du Freak: The Vampire's Assistant. Trask also scored the 2003 movies Camp and The Station Agent, as well as Dreamgirls (2006), In the Land of Women (2007), The Savages (2007), and The Back-up Plan (2010), among other works. He scored the 2010 film Little Fockers, a sequel to both Meet the Parents (2000) and Meet the Fockers (2004). Recent work includes the 2013 films "Lovelace," directed by Rob Epstein and Jeffery Friedman and "Admission," directed by Paul Weitz.

Trask performed with Yoko Ono on July 14, 2007 at the Pitchfork Music Festival in Chicago, Illinois.