Perros-Guirec (French pronunciation: [pɛʁɔs ɡiʁɛk]; Breton: Perroz-Gireg) is a commune in the department of Côtes-d'Armor in Brittany.

[citation needed] Perros-Guirec has a number of seafront villas and manors, many of which are built with pink granite extracted locally.

[citation needed] Perros-Guirec's economy is largely based on tourism but benefits also from its proximity to Lannion technopole.

Perros-Guirec was long attended by men of letters and artists, for instance the painter Maurice Denis, owner of a villa in Trestrignel ("Never the nature seemed to me more beautiful than in Perros"), writers Anatole Le Braz, Charles Le Goffic, or Ernest Renan who was behind the idea of the construction of the Grand Hotel in Trestraou, to name a few.

Perros-Guirec is where, in Gaston Leroux's The Phantom of the Opera, a teenage Vicomte de Chagny retrieves young Christine Daaé's scarf from the sea.