Mervyn Edwin Warren (born February 29, 1964) is an American film composer, record producer, conductor, arranger, lyricist, songwriter, pianist, and vocalist. Warren is a five-time Grammy Award winner and a 10-time Grammy Award nominee. Warren has written the underscore and songs for many feature and television films and has written countless arrangements in a variety of musical styles for producers Quincy Jones, David Foster, Arif Mardin, and dozens of popular recording artists, including extensive work on Jones' Back on the Block, Q's Jook Joint, and Q: Soul Bossa Nostra.

Warren has also produced numerous jazz, pop, R&B, contemporary Christian, and gospel artists, typically arranging those recordings and often performing on them (on piano, keyboards, or vocals), and often writing or co-writing the melodies and lyrics. Warren is best known as an original member of the a cappella vocal group Take 6, for having composed the underscore to the number-1 film The Wedding Planner (2001), for producing and arranging songs for the hit film Sister Act 2 (1993), and for producing and arranging most of the soundtrack to the 1996 Whitney Houston film The Preacher's Wife—the best-selling gospel album of all time.