BARR
| Acronym | Definition |
|---|---|
| BARR | Block Aircraft Registration Request (National Business Aviation Association) |
| BARR | British Association of Road Races (est. 1984; UK) |
| BARR | Board on Agriculture and Renewable Resources (Washington, DC, USA) |
| BARR | Bump and Run Reversal (stock trading) |
| BARR | Blissful Acres Rescue Reserve (Bend, OR) |
| BARR | Bureau of Aeronautics Resident Representative |