| Afon Cych | |
|---|---|
 | |
  Mouth | |
| Native name | Afon Cuch (Welsh) |
| Location | |
| Location | Pembrokeshire, Carmarthenshire |
| Physical characteristics | |
| Mouth | |
• location | River Teifi |
| Length | 13 km (8.1 mi) |
| Basin features | |
| River system | River Teifi |
Afon Cych (standard Welsh orthography: Afon Cuch) is a tributary of the River Teifi in south-west Wales. It is 13 km long, passes through a number of small settlements on the border between Pembrokeshire and Carmarthenshire, and is significant in Welsh legend.