Wolf's Castle (Welsh: Casblaidd), also spelt Wolfscastle, is a village and community in Pembrokeshire, between Haverfordwest and Fishguard, in southwest Wales.

The remains of a motte and bailey castle lie in the upper village, a strategic location determined by its situation at the northern end of Treffgarne gorge.

[3] The castle formed part of the series of defences constructed by the Normans after 1093 known as the Landsker Line, providing a general boundary between the English-speaking south and the Welsh-speaking north.

Mainly agricultural due to its rural location, the village does boast both the Wolfscastle Country Hotel and a public house, the Wolfe Inn.

Every summer the Wolfscastle Festival week is held and the community council sponsors the village's annual entry in the Wales in Bloom competition.