IOM
IOM is an abbreviation for:
- Institute for Surface Modification , see Leibniz Institute for Surface Modification
- Institute of Medicine in the USA, renamed the National Academy of Medicine (NAM) since 2015
- International One Meter , classification in the field of radio-controlled sailing
- International organization for migration , worldwide intergovernmental organization
- Isle of Man , an island in the Irish Sea
- Isle of Man Airport (IATA code)
- Iupiter Optimus Maximus on Latin inscriptions, see Jupiter (mythology)