Erquy (Breton:Erge-ar-Mor, Gallo: Erqi) is a commune in the Côtes-d'Armor department of Brittany in northwestern France.

Erquy is located in a cove of the Penthièvre coast bordered by Erquy’s cape on one side and a volcanic rock formation called pointe de la Heussaye on the other. Erquy harbour shelters a flotilla of about 80 trawlers and the town is known as the scallop “capital”. The shellfish are collected in the Saint-Brieuc bay.