Quemper-Guézennec (French pronunciation: [kɛ̃pɛʁ ɡezɛnɛk]; Breton: Kemper-Gwezhenneg) is a commune in the Côtes-d'Armor department of Brittany in northwestern France.

Inhabitants of Quemper-Guézennec are called quemperrois in French.

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