|Length:||12.1 miles (19.5 km)|
|Meets:||A487, B4341, unclassified|
|Route outline (key)|
The B4327 is a rural road in western Pembrokeshire.
It starts at a junction with the A487 in Haverfordwest, from where it heads westwards towards the coast. In the outskirts of Haverfordwest the B4327 has a junction with the B4341 outside the Bellevue Pub, where B4327 drivers must TOTSO left. From here the road is signed as being 13 miles to Dale and the end of the road. This junction is also home to some black-and-white-striped kerbstones. After this, a short distance on, the road passes over Skerryford Bridge.
The B4327 passes several scattered buildings but few villages of any size en route. It reaches a crossroads at South Hill where it TOTSOs left and then TOTSOs right at a T-junction near Mullock. Eventually the road reaches Milford Haven and the village of Dale. The B4327 ends at the point where the road turns away from the coast once more. Owing to a one-way system through Dale, outbound traffic has to follow a long loop halfway across the peninsula to return to the B4327.
The route of the B4327 has remained unchanged since 1923. Part of it today runs through the Pembrokeshire Coast National Park.