NCOS
| Acronym | Definition |
|---|---|
| NCOS | National Commission on Space (US NASA) |
| NCOS | Non Concurrent Operating System |
| NCOS | Network Client Operating System |
| NCOS | Network Computer Operating System |
| NCOS | Network Class Of Service (Northern Telecom) |
| NCOS | National Centre for Development Cooperation |
| NCOS | National Chief of Staff |
| NCOS | National Capitol Orchid Society |
| NCOS | Non Commissioned Officer's School |
| NCOS | National Council on Stuttering |
| NCOS | North Carolina Optometric Society |
| NCOS | Numbered Class Of Service |