Clint Mansell (born Clinton Darryl Mansell, 7 January 1963, in Coventry, England) is a musician and composer.
Mansell was the lead singer and guitarist of the British band, Pop Will Eat Itself. Mansell also broke into the world of film scoring when his friend, director, Darren Aronofsky, gave him the opportunity to score his debut film, "Pi".

Despite some acclaim, Mansell's score went widely unnoticed by both fans and critics. However, the soundtrack release, placing Mansell's work alongside tracks from Autechre, Aphex Twin, Orbital and Roni Size, did win many fans from the IDM and electronica communities.

Mansell's score for π was followed up by his score for the next Darren Aronofsky film, Requiem for a Dream. The score became a cult hit, as it was appreciated by scores of composers. The trailer for The Lord of the Rings: The Two Towers used a remixed version of the track "Lux Aeterna", re-recorded with a full orchestra and choir. The song, named "Requiem for a Tower", was made just for the trailer (it was not featured in either Requiem for a Dream or The Lord of the Rings: The Two Towers) and was composed by Simone Benyacar, Dan Nielsen, and Veigar Margeirsson. In October 2006, the cue was released on the iTunes album release from Corner Stone Cues, appropriately titled "Requiem for a Tower".

The soundtrack for Requiem for a Dream also confirmed its popularity with the remix album Requiem For A Dream: Remixed, which contained new mixes of the music by Paul Oakenfold, Josh Wink, Jagz Kooner, and Delerium amongst others. The "Lux Aeterna" track has become extremely popular, and both the original and the remix have appeared in a wide variety of commercials and trailers, including trailers for the films Sunshine (2007), Zathura and The Da Vinci Code. It was used in the Allied Irish Banks' advertising campaign for the 2006 Ryder Cup, and was used by Lil' Jon and the East Side Boyz in their Kings of Crunk album.

Mansell also composed the score to Doom, something that brought him musically very close to the original game composers - Doom 1 and 2 game music author Paul Burdette and his later followers - Quake and Doom 3 soundtracks author Trent Reznor and Quake 2 and 3 soundtrack performers Sonic Mayhem.

Other notable achievements include the theme for the film The Hole and the music for the pilot episode of CSI: NY.

His latest release is a soundtrack for another Darren Aronofsky movie, 2006's The Fountain (performed by Kronos Quartet with Mogwai).