MERRYN (ST.), a parish in the hundred of PYDER, county of CORNWALL, 2 miles (W. S. W.) from Padstow, containing 537 inhabitants. The living is a vicarage, in the peculiar jurisdiction and patronage of the Bishop of Exeter, rated in the king's books at & 15. 6. 8. A small quay was constructed under Catacleuse cliffs, about 1794, by Mr. Peter, of Harlyn, for the reception of coasting vessels and steam-boats belonging to the pilchard fishery in Portlease bay. In the vicinity was anciently a village, with a chapel or church dedicated to St. Constantino, the ruins of which still remain. The Bristol channel bounds this parish on the west and north.