AARR
| Acronym | Definition |
|---|---|
| AARR | Arbitrarily Applicable Relational Responding |
| AARR | Average Annual Rate of Reduction |
| AARR | Annual Aggregate Revenue Requirement |
| AARR | Association of American Railroads |
| AARR | Argonne Advanced Research Reactor |
| AARR | Alan Aragon's Research Review (fitness research journal) |
| AARR | Aktiebolaget Atomenergi Research Reactor |
| AARR | American Association of Railroads (usually seen as AAR) |
| AARR | Approval, Adjustment & Reject Response (healthcare) |
| AARR | Average Accounting Rate of Return |