A gremlin is a mythological mischievous creature.
Gremlin or gremlins may also refer to:
- The Gremlins, a book by Roald Dahl
- AMC Gremlin, a subcompact car made by American Motors Corporation
- Gremlin (comics), a series of characters in the Marvel Universe
- Gremlin (protein), a naturally-occurring protein
- Gremlin Industries, an early arcade game manufacturer
- Gremlin Interactive (originally Gremlin Graphics), a British software house
- Gremlins, a movie released in 1984
- One of several video game versions or spin-offs of the original movie:
- Gremlins (Atari 2600), an action video game based on the 1984 movie, for the Atari VCS/2600 console
- Gremlins (Atari 5200), a different action video game, for the Atari 5200 console
- Gremlins: The Adventure, an interactive fiction computer game based on the 1984 movie
- Gremlins: Unleashed!, a 2001 video game for the Game Boy Advance, based on the 1984 movie
- Gremlins: Stripe vs Gizmo, a 2002 video game for the Game Boy Advance, based on the 1984 movie
- Gremlins 2: The New Batch, the 1990 sequel to the 1984 movie
- Gremlins 2: The New Batch (video game), a video game based on the 1990 movie
- One of several video game versions or spin-offs of the original movie:
- The Gremlins (band), a band from Detroit, Michigan
- SA-14 Gremlin, the NATO reporting name for the Russian 9K34 Strela-3 surface-to-air missile system
- Gremlin (chimpanzee), a chimpanzee that featured in several documentaries
- Gremlin (programming language), a graph-based programming language