| Abbreviation | Definition |
|---|---|
| AMRL | Aerospace Medical Research Laboratory |
| AMRL | Armored Medical Research Laboratory |
| AMRN | A Maximum Ride Novel |
| AMRP | Annual Modal Research Plans |
| AMSR | Advanced Math Science Research |
| AMSR | Archive of Market and Social Research |
| ANH | Agriculture, Nutrition & Health |
| ANR | Advances in Neuroblastoma Research |
| ANR | Alan Newman Research |
| ANR | Applied Nursing Research |
| ANRC | Australian National Research Council |
| ANRP | Applied Networking Research Prize |
| ANSR | Advanced Networks Systems Research |
| ANSR | Arizona Near Space Research |
| AOE | Angle Of Engagement |
| AORA | Atlantic Ocean Research Alliance |
| AORC | African Ombudsman Research Centre |
| AORC | Assured Opportunity for Research Careers |
| AORF | Athletic Orthopedics Research Foundation |
| APAARI | Asia Pacific Association of Agricultural Research Institutions |