| Acronym | Definition |
|---|
| FMJ➣Full Metal Jacket |
| FMJ➣Fédération des Maisons de Jeunes (French: Federation of Youth Centres; Belgium) |
| FMJ➣Facility Management Journal |
| FMJ➣Freedom for Media in Java (software; computer programming) |
| FMJ➣Folk Music Journal (English Folk Dance and Song Society; London, England, UK) |
| FMJ➣Flagfootball Management Japan |
| FMJ➣Forest Machine Journal (UK) |
| FMJ➣First Myoclonic Jerk |