Le Pin (French pronunciation: [lə pɛ̃] ⓘ; Gallo: Le Pein or L'Piñ, Breton: Ar Bineg) is a commune in the Arrondissement of Châteaubriant-Ancenis of the Loire-Atlantique department in western France.

It is located between Rennes and Angers, in the drainage basin of the Erdre, a right tributary of the Loire.

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