Haroldston St Issells is a former parish[1] in Pembrokeshire, Wales, on the upper reaches of the Western Cleddau, 1 mile (1.6 km) southeast of Haverfordwest.

[8] In 1643, Haroldston was garrisoned by Royalist troops with the presumed support of Herbert Perrot.

The following year he changed sides, risking the destruction of his property, but the King's cause faltered.

In 1994 it was excavated to bedrock level for capping to safeguard Haverfordwest building expansion.

[12] Dyfed Family History Society is the repository for the records of the parish church.