| Acronym | Meaning |
| AH | Air Algerie - Algeria (IATA airline code) |
| AH | Air Handler |
| AH | Airfield Heliport |
| AH | Allowance Holder |
| AH | Alternate Headquarters |
| AH | Applicant's Handbook |
| AH | Armor Holdings, Inc. (now BAE Systems Mobility & Proection Systems) |
| AH | Army Hospital |
| AH | Artificial Horizon |
| AH | Attack Helicopter |
| AH | Automated Howitzer |
| AH | Hospital Ship |