Saint-Oyen (; Valdôtain: ) is a village and comune in the Aosta Valley region of north-western Italy.

Geography The village is bounded by Bourg-Saint-Pierre (Switzerland), Étroubles, Gignod and Saint-Rhémy-en-Bosses.

Twin towns Saint-Oyens Saint-Oyen Montbellet, for the hamlet of Saint-Oyen

Notes and references