Thaon is a commune in the Calvados department in northwestern France. Thaon may also refer to Colomby-sur-Thaon, a former commune in the Calvados department in France Thaon-les-Vosges, a former commune in the Vosges department in France ES Thaon, a French football club based in Thaon-les-Vosges Thaon (surname)