Commana is a commune in the Finistère department of Brittany in northwestern France. Inhabitants of Commana are called in French C…Commana is a commune in the Finistère department of Brittany in northwestern France. Inhabitants of Commana are called in French Commanéens. In 2023, 39.2% of primary-school children attended bilingual schools, where Breton language is taught alongside French.