| Acronym | Definition |
|---|
| RCNA | Royal College of Nursing, Australia |
| RCNA | Royal Canadian Naval Association |
| RCNA | Regional Cisco Networking Academy |
| RCNA | Royal Canadian Numismatic Association (formerly the Canadian Numismatic Association) |
| RCNA | Reed-Cooke Neighborhood Association (Washington, DC) |
| RCNA | Radiologic Clinics of North America |
| RCNA | Restorative Certified Nursing Assistant |
| RCNA | Reformed Congregations of North America |
| RCNA | Regional Clinical Network Analysts |
| RCNA | Resource Council for New Americans |
| RCNA | Regional Center for North America |
| RCNA | Russian-Chechen News Agency |