AMTL
| Acronym | Definition |
|---|---|
| AMTL | Alpine Mountaineering and Technical Leadership (American Alpine Institute; Bellingham, WA) |
| AMTL | Army Materials Technology Laboratory |
| AMTL | American Medical Testing Laboratories |
| AMTL | Antemortem Tooth Loss (dentistry) |
| AMTL | Advanced Manufacturing Technology Laboratory |
| AMTL | active management of the third stage of labor |
| AMTL | Área Metropolitana de Transportes de Lisboa (Portuguese: Metropolitan Area of Transportation of Lisbon) |