| Acronym | Definition |
|---|
| RSPA | Research and Special Programs Administration (US Department of Transportation) |
| RSPA | Retail Solutions Providers Association |
| RSPA | Royal Society for the Prevention of Accidents (UK) |
| RSPA | Riverside School of Performing Arts |
| RSPA | Ruimtelijk Structuurplan Provincie Antwerpen |
| RSPA | Recreational Slo-Pitch Association |
| RSPA | RS Pressman & Associates, Inc. |
| RSPA | Rattlesnake Springs Picnic Area |
| RSPA | Ranney School Parents' Association |
| RSPA | Repartição Sanitária Pan-Americana |
| RSPA | Raising Standards of Pension Administration (UK) |
| RSPA | Repeated Strenuous Physical Activities |
| RSPA | Regulator of Stationary Phase A |
| RSPA | Rehovot Society for Protection of Animals |
| RSPA | Revealed Symmetric Production Advantage |
| RSPA | Requested Split Pay Amount (US Marine Corps) |
| RSPA | Retired State Police Association of Illinois |
| RSPA | Royal Society for the Protection of Animals (Australia) |
| RSPA | Royal Scottish Pipe Band Association |
| RSPA | Resort Specially Planned Area |
| RSPA | Renaissance School Parents Association |
| RSPA | Russian Screenprinting Association |
| RSPA | Rocket Storage and Processing Area |
| RSPA | Really Simple PHP (Hypertext Preprocessor) and AJAX (Asynchronous Javascript and XML (Extensible Markup Language)) |
| RSPA | Roosevelt School Parent Association |
| RSPA | Roentgen Single-plane Stereophotogrammetric Analysis |
| RSPA | Restricted Common Stock Purchase Agreement |
| RSPA | Ridgefield Studio of Performing Arts (Ridgefield, CT) |