| Dinefwr | |
|---|---|
.svg) | |
| History | |
| • Created | 1 April 1974 |
| • Abolished | 31 March 1996 |
| • Succeeded by | Carmarthenshire |
| Status | Borough |
| • HQ | Llandeilo |
Dinefwr was one of six local government districts of the county of Dyfed, Wales from 1974 to 1996. It was named after Dinefwr Castle which in the Middle Ages had been the court of the House of Dinefwr and one of the three principal royal courts of Wales with Aberffraw and Shrewsbury.