Wiston (/ˈwɪsən/;[2] Welsh: Cas-wis) is a village, parish and community in Pembrokeshire, Wales, in the United Kingdom.

The destination of the road is uncertain and has only been traced beyond Wiston for a mile or two.

[4] In 2013 it was confirmed that about 500m north-east of Wiston near Churchill Farm, is located the first ever Roman fort discovered in Pembrokeshire.

[5] The site is shown on the Ordnance survey county series as a U-shaped quarry approximately 170m in length.

The current structure was founded by Wizo the Flemming (also responsible for the castle).