| Abbreviation | Definition |
|---|---|
| RPA | Republika Poludniowej Afryki |
| RPA | Resistant Pseudomonas aeruginosa |
| RPA | Resource Protection Areas |
| RPA | Retail Packaging Association |
| RPA | Retarding Potential Analyzer |
| RPA | Revenue Per Action |
| RPA | RIB Project Archive |
| RPA | Richmond Progressive Alliance |
| RPA | Robb Park Abbey |
| RPA | Robust Probabilistic Averaging |
| RPA | Rockefeller Partners Architects |
| RPA | Rocket Propulsion Analysis |
| RPA | Royal Pembroke Artillery |
| RPA | Rubin Postaer and Associates |
| RPA | Ruby Production Archive |
| RPA | Rural Payments Agency |
| RPAC | Realtor Political Action Committee |
| RPAC | Realtors Political Affairs Council |
| RPAC | Recreation And Physical Activity Center |
| RPAC | Recreation Physical Activity Center |