| Acronym | Definition |
|---|
| AHR | American Historical Review (Journal of the American History Association) |
| AHR | Aryl Hydrocarbon Receptor |
| AHR | Anchor |
| AHR | Address High Register |
| AHR | Australian Health Review (Australian Healthcare & Hospitals Association) |
| AHR | Adjusted Hazard Ratio |
| AHR | Assisted Human Reproduction |
| AHR | airway hyper-responsiveness |
| AHR | Academic Human Resources (various organizations) |
| AHR | Active Head Restraint |
| AHR | Advancing Human Rights (New York, NY) |
| AHR | Average Hull Roughness (sailing) |
| AHR | Air-Conditioning Heating Refrigeration |
| AHR | Average Heart Rate |
| AHR | Alt.healing.reiki (Usenet newsgroup) |
| AHR | Ampere-Hour |
| AHR | American Haflinger Registry (Akron, OH, USA) |
| AHR | Artists for Human Rights (Calabasas, CA) |
| AHR | Aviemore Highland Resort, Ltd. (Scotland, UK) |
| AHR | Aqueous Homogeneous Reactor |
| AHR | Acceptable Hazard Rate |
| AHR | Absorptive Heat Recovery |
| AHR | Ad Hoc Router |
| AHR | After Heat Removal |
| AHR | Attack Helicopter Regiment |
| AHR | Association for Health Records |
| AHR | Accumulated Hazard Rate |
| AHR | Archives de l'Histoire Rurale (French: Archives of Rural History; Switzerland) |
| AHR | Applied Horticultural Research |
| AHR | Advanced Hawkeye Radar |
| AHR | Altantic Ham Radio Ltd. |
| AHR | Avenir et Histoire des Recycleurs (French: Future and History of Recyclers) |
| AHR | Academy of Human Rights |
| AHR | Atelier Hautes Résolutions (French: High Resolution Workshop) |
| AHR | After Honeymoon Reception |
| AHR | Asset Health Review |
| AHR | Andrew Hayes Racing (kart racing team) |