| Acronym | Definition |
|---|
| RCCS➣Royal Canadian Corps of Signals (Canada) |
| RCCS➣Research Center on Computing and Society (Southern Connecticut University) |
| RCCS➣Réseau Canadien du Cancer du Sein (Canadian Breast Cancer Network) |
| RCCS➣Research Center for Computational Science |
| RCCS➣Resonance Control Cooling System |
| RCCS➣Race Car Control System |
| RCCS➣Royal Charter Composite Squadron (Civil Air Patrol) |
| RCCS➣Risca Community Comprehensive School (UK) |
| RCCS➣Ron's Copy n Computer Services (Sellersburg, IN) |