Penrydd (variously spelled Penrhydd, Penrhudd, Penrith, Penreth or Penrieth) is a former parish in the Hundred of Kilgerran, north Pembrokeshire, Wales.

The parish's history is closely linked with that of Castellan, and included parts of the present villages of Blaenffos and Crymych.

The parish, in the 1530s, was unique in Wales in furnishing the title of a suffragan see, namely Bishop of Penrydd, and an Inventory of Ancient Monuments explains how this may have come about.

[1] A survey by Dyfed Archaeological Trust for Cadw in 2011 describes the present churchyard as "...suboval/subrectangular, now poorly defined..." and the church as "...small, comprising chancel, nave and west porch.

[9] The annual value of the Real property of the parish, including Castellan, was £756 in 1815 when the joint population was 273.