| Abbreviation | Definition |
|---|---|
| ALH | Advanced Light Helicopter |
| ALH | Amplitude of Lateral Head |
| ALH | Atypical lobular hyperplasia |
| ALH | Atypical Lymphoid Hyperplasia |
| ALHAJ | al Hajj |
| ALHT | Ambientes Libres De Humo De Tabaco |
| ALHT | Average Loan Holding Time |
| ALI | Advanced Land Imager |
| ALI | Airworthiness Limitation Item |
| ALI | Allison Logan I |
| ALI | Apple Learning Interchange |
| ALI | Atomic Layer Injection |
| ALIA | Autacoid Local Inflammation Antagonism |
| ALIAS | A Legacy to Inspire Achieve and Share |
| ALIAS | Additional Load Intrusion Avoidance System |
| ALIAS | Aliases |
| ALIAS | Artificial Life Intelligence and Adaptive Systems |
| ALIAS | Artificial Lifeform Intended for Assassination and Sabotage |
| ALIAS | Artist Led Initiatives Advisory Service |
| ALIASONE | alias 'One |