RCAS
| Acronym | Definition |
|---|---|
| RCAS | Reserve Component Automation System |
| RCAS | Rosary College of Arts and Sciences (Dominican University; River Forest, IL) |
| RCAS | Roy Chapman Andrews Society (est. 1999) |
| RCAS | Rihab Center for Archaeological Studies (Rihab, Jordan) |
| RCAS | Residual Capability Assessment Survey |
| RCAS | Regimental Combat Aviation Squadron |
| RCAS | Rose City Ambulance Service (Michigan) |
| RCAS | Replication-Competent ASLV Long Terminal Repeat with a Splice acceptor |