Clinton Darryl Mansell (; born 7 November 1963) is an English musician, singer, and composer. He served as the lead vocalist of alt-rock band Pop Will Eat Itself. After the band's dissolution, Mansell moved to the United States and embarked on a career as a film score composer.

Mansell partnered with American filmmaker Darren Aronofsky and composed the scores for his films Pi, Requiem for a Dream, The Fountain, The Wrestler, Black Swan, and Noah. Mansell is best known for the Requiem for a Dream soundtrack, particularly the film's composition "Lux Aeterna" and a re-orchestrated version titled "Requiem for a Tower" that was created for The Lord of the Rings: The Two Towers trailer, both of which have been featured in multiple advertisements, films, film trailers, video games and other media.

He provided the scores for the Ben Wheatley films High-Rise, Happy New Year, Colin Burstead, Rebecca and In the Earth. Other films featuring Mansell's scores include Sahara, Moon and Stoker. He has also composed music for television and video games.

Mansell's work on The Fountain was nominated for a Golden Globe and he was nominated for a Grammy Award for his work on Black Swan.