Saint-Quay-Portrieux is a commune in the Côtes-d'Armor department of Brittany in northwestern France.

It is located on the northern coast of the peninsula of Saint-Quay-Portrieux, between the towns of Binic and Paimpol.

The town has a rich history, dating back to the Middle Ages, when it was a small fishing village.

In the 19th century, Saint-Quay-Portrieux became a popular tourist destination, due to its beautiful scenery and mild climate.

Today, Saint-Quay-Portrieux is a thriving town, with a population of around 3,000 people.

The town's economy is based on tourism, fishing, and agriculture.

Saint-Quay-Portrieux is home to several historical landmarks, including the Church of Saint-Quay and the Château de Bienassis.

The town also hosts a number of cultural events throughout the year, including the Fête de la Mer (Festival of the Sea) and the Festival du Chant de Marin (Festival of Sea Shanties).

Saint-Quay-Portrieux played a significant role in the Battle of the Saintes during the War of the First Coalition.

The town was occupied by the Germans during World War II.

Saint-Quay-Portrieux is home to a number of scientific research institutions, including the Institut Français de Recherche pour l'Exploitation de la Mer (French Research Institute for Exploitation of the Sea).

The town is also home to a number of UNESCO World Heritage Sites, including the Mont-Saint-Michel.

The town's population has been growing steadily in recent years.

Saint-Quay-Portrieux is a popular destination for tourists, due to its beautiful scenery, rich history, and cultural events.