Port Isaac (Cornish: Porthysek)[3] is a small fishing village[4] on the Atlantic coast of north Cornwall, England, in the United Kingdom.

The origins of Port Isaac are likely Celtic[5] and the development of the village can be roughly divided into three phases.

Once goods from locations further inland were better served by the North Cornwall Railway, the economy of the port relied on pilchard fishing, probably a centuries-old industry.

A 1937 history said, "...Tudor pier and breakwater have now yielded to a strong new sea-wall balanced by an arm on the opposite side of the cove, and we do not doubt that the fishermen sleep more soundly in their beds on stormy nights.

"[6] The village centre dates from the 18th and 19th centuries, from a time when its prosperity was tied to local coastal freight and fishing.

Apart from the corn that gave the town its name,[5] the port handled cargoes of coal, wood, stone, ores, limestone, salt, pottery and heavy goods which were conveyed along its narrow streets.

[10] The first link from Port Isaac to the railways was started by John Prout, who ran a service[clarification needed] to Bodmin Road station, more than 10 miles (16 km) distant, from 1861.

The village was served by Western Greyhound's 584 bus service from Wadebridge to Camelford, which ran five times daily in each direction, except for Sundays.

Cornish wrestling tournaments, for prizes, were held in Port Isaac at the football field.