| Acronym | Definition |
|---|
| ROAR | Registry of Open Access Repositories |
| ROAR | Reach Out and Read (national pediatric literacy program) |
| ROAR | Right Of Admission Reserved |
| ROAR | Roll Over Animal Rescue (Des Plaines, IL) |
| ROAR | Reservoirs of Antibiotic Resistance network |
| ROAR | Reach Out Act Respond (Animal Planet advocacy organization) |
| ROAR | Ravers Organized Against the Rave Act (USA) |
| ROAR | Reliability Obtained by Adaptive Reconfiguration (Stanford) |
| ROAR | Research on Ongoing Acquisition Research |
| ROAR | Recovery of Overpayments, Accounting and Reporting (Social Security Administration) |
| ROAR | Radio Operated Automobile Racing (remote controlled cars) |
| ROAR | Rail Operations and Regulatory Committee (California) |
| ROAR | Resource Optimization and Alignment Review (Army medical department) |
| ROAR | Responsible Organization Action Request |
| ROAR | Right of Admission Refused |
| ROAR | Return on a Relationship (various companies) |
| ROAR | Reach Out and Rejoice |
| ROAR | Resurrection of Alternative Retro (band) |
| ROAR | Return Of Army Reparables |
| ROAR | Radar Obsolescence and Availability Recovery |
| ROAR | Reach Out And Recover (mental health; Australia) |