| Acronym | Definition |
|---|
| GATM➣Global Air Traffic Management |
| GATM➣L-Arginine:glycine Amidinotransferase |
| GATM➣Gulf Air Traffic Management |
| GATM➣Geography at the Movies (UK) |
| GATM➣Ground/Air Training Missile (UK) |
| GATM➣Genetic Algorithm Template-Matching (medical technology) |