Ira Marvin Levin (August 27, 1929 – November 12, 2007) was an American novelist, playwright, and songwriter. His notable works include the novels A Kiss Before Dying (1953), Rosemary's Baby (1967), The Stepford Wives (1972), This Perfect Day (1970), The Boys from Brazil (1976), and Sliver (1991). Levin also wrote the play Deathtrap (1978). Many of his novels and plays have been adapted into films. He received the Prometheus Hall of Fame Award and several Edgar Awards.

Levin graduated from the Horace Mann School and New York University, where he majored in philosophy and English. After college, he wrote training films and scripts for television. Levin's first produced play was No Time for Sergeants (adapted from Mac Hyman's novel), a comedy about a hillbilly drafted into the United States Air Force that launched the career of Andy Griffith. The play was turned into a movie in 1958, and co-starred Don Knotts, Griffith's long-time co-star and friend. No Time for Sergeants is generally considered the precursor to Gomer Pyle, USMC. Levin's first novel, A Kiss Before Dying, was well received, earning him the 1954 Edgar Award for Best First Novel. A Kiss Before Dying was turned into a movie twice, first in 1956.