| Name | Location | County | Country | Power source | Type | Function | River |
| Abbey Mills, Neath | Neath, Blaenhonddan | Glamorgan | United Kingdom | Water | Watermill | Forge mill, Rolling mill, Woollen mill | Clydach |
| Felin Cilgwyn, Cilgwyn | Cilgwyn, Nevern | Carmarthenshire | United Kingdom | Water | Watermill | Woollen mill | Clydach |
| Felin Clydach, Nevern | Nevern | Pembrokeshire | United Kingdom | Water | Watermill | Corn mill, Fulling mill | Clydach |