| RARE | Radford Amazon Research Expedition 
| Others |
| RARE | Raleigh Area Real Estate
| Others |
| RARE | Rapid Assessment Research Evaluation
| Others |
| RARE | Rapid Assessment Response And E
| Others |
| RARE | Rapid Assessment Response And Evaluation
| Others |
| RARE | Rapidly Accelerated Research Experience
| Others |
| RARE | Rare Animal Relief Effort
| Others |
| RARE | Rare Awareness Research and Education
| Others |
| RARE | Real Audio Renderer
| Others |
| RARE | Real Authentic Real Etiquette
| Others |
| RARE | Reducing Avoidable Readmissions Effectively
| Others |
| RARE | Refocus, Action, Results, and Exceed
| Others |
| RARE | Reinhold Associates Real Estate
| Others |
| RARE | Repeatable Adaptable Reliable Extensible
| Others |
| RARE | Reptile Adoption Rehabilitation and Education
| Others |
| Rare | Reseaux Associes pour la Recherche Europeenne
| Others |
| RARE | Resource Assistance for Rural Environments
| Others |
| RARE | Responsible Accountable Relevant and Ethical
| Others |
| RARE | Responsible And Respectful Everyday
| Others |
| RARE | Retinoic Acid Response Element
| Others |
| RARE | Revolutionary Artistic Relevant Enchanting
| Others |
| RARE | Rhythm And Rappin Eternally
| Others |
| RARE | Risk Adjusted Returns On Equity
| Others |
| RARE | Roadless Area Review And Evaluation
| Others |
| RARE | Rooted And Reaching Everywhere
| Others |
| RARE | Ropemarks Artistic Rope Exchange
| Others |