| Name | Location | County | Country | Power source | Type | Function | River |
| Haverfordwest Saw Mills, Haverfordwest | Haverfordwest | Pembrokeshire | United Kingdom | Water | Watermill | Corn mill, Saw mill | Western Cleddau |
| Prendergast Mill, North Prendergast, Haverfordwest | Haverfordwest | Pembrokeshire | United Kingdom | Water | Watermill | Cotton mill, Paper mill | Western Cleddau |