National Welsh Omnibus Services
| Parent | National Bus Company |
|---|---|
| Founded | 17 April 1978 |
| Defunct | 7 August 1992 |
| Headquarters | Cardiff, Wales |
| Locale | South East Wales Forest of Dean |
| Service area | |
| Service type | Bus and coach |
| Fleet | 410 (May 1987) |
National Welsh Omnibus Services (Welsh: Cymru Cenedlaethol) was a bus company which operated in South East Wales and in the Forest of Dean area of Gloucestershire from 1978 to 1992.