Crom may refer to:
- Crom Cruach, a deity of pre-Christian Ireland
- Crom, County Fermanagh, a townland in County Fermanagh, Northern Ireland
- Crom Estate, a Northern Irish National Trust Property
- Crom (character), a character in the 1982 film Tron played by Peter Jurasik
- Crom (fictional deity), a fictional deity in the Conan the Barbarian world
CROM may refer to:
- Regional Confederation of Mexican Workers (Confederación Regional Obrera Mexicana)