Monster Mash is a 1995 musical comedy horror film written and directed by Joel Cohen and Alec Sokolow, based on Bobby Pickett's 1962 novelty song "Monster Mash" and the 1967 stage musical, I'm Sorry the Bridge is Out, You'll Have to Spend the Night, also by Pickett and Sheldon Allman. The film adaptation follows Mary and Scott, a young couple who find themselves spending Halloween night at the mansion of Dr. Victor Frankenstein. Along with housemates Igor, Count Dracula, Wolfie, Frankenstein's monster, and a reanimated Elvis Presley, Dr. Frankenstein takes a personal interest in what secret designs await the main characters.

"Monster Mash" is a 1962 novelty song by Bobby "Boris" Pickett. The song was released as a single on Gary S. Paxton's Garpax Records label in August 1962 along with a full-length LP called The Original Monster Mash, which contained several other monster-themed tunes. The "Monster Mash" single was number one on the Billboard Hot 100 chart on October 20–27 of that year, just before Halloween. It has been a perennial Halloween favorite ever since. In 2021, nearly 60 years after its release, "Monster Mash" re-entered the Billboard Hot 100 chart at number 37.