| Acronym | Definition |
|---|
| RCAA➣Red de Cientificos Argentinos en Alemania (Spanish: Network of Argentine Scientists in Germany) |
| RCAA➣Runs Created Above Average (baseball statistic) |
| RCAA➣Rwandan Civil Aviation Authority |
| RCAA➣Rock Crawlers Association of America (formerly American Rock Crawlers Association) |
| RCAA➣Romanian Civil Aviation Authority |
| RCAA➣Root Cause Alarm Analysis (Telcordia) |
| RCAA➣Royal Canadian Artillery Association |
| RCAA➣Rocket City Astronomical Association |
| RCAA➣Radio Code Aptitude Area |