| Abbreviation | Definition |
|---|---|
| AHR | Ana Hurka Robles |
| AHR | Anita Hassanandani Reddy |
| AHR | Ann has the Red |
| AHR | Arabian Horse Registry |
| AHR | Aryl Hydrocarbon Receptor |
| AHR | Atrial Heart Rate |
| AHR | Average Heart Rate |
| AHRA | Audio Home Recording Act |
| AHRC | Advocacy Humanity Reimagination Change |
| AHRC | Atlanta Harm Reduction Coalition |
| AHRC | Austin Harm Reduction Coalition |
| AHRD | ASEAN Human Rights Declaration |
| AHRF | Acute Hypercapnic Respiratory Failure |
| AHRF | Acute hypoxemic respiratory failure |
| AHRF | All Hazards Receipt Facility |
| AHRL | Arctic Hydroclimatology Research Lab |
| AHRN | American Horse Rescue Network |
| AHRR | Aryl Hydrocarbon Receptor Repressor |
| AHRS | Agency Human Resource Services |
| AHRS | Army Human Resource Systems |