| Corsydd a Rwyth Cilyblaidd | |
| Aos: | Carmarthenshire |
| Interest: | Wildlife |
| Coordinates: | 52.0905°N -4.1297°W |
| Displaymap: | Wales |
| Area: | 3.83 ha |
| Notifydate: | 3 September 1987 |
Corsydd a Rwyth Cilyblaidd is a wetland area that is a Site of Special Scientific Interest in Carmarthen & Dinefwr, Wales.