Oncourt () is a former commune in the Vosges department in northeastern France. On 1 January 2016, it was merged into the new commune Capavenir-Vosges,Arrêté préfectoral 24 December 2015 which was renamed Thaon-les-Vosges effective 2022. Inhabitants are called Oncourtois.
Geography The village is positioned some to the west of the village of Thaon-les-Vosges, and crossed by the little river Avière, itself a tributary of the Moselle.
Personalities Laurent Mariotte, actor and animator with a French radio and television providers, spent a part of his childhood and adolescence at Oncourt.
See also Communes of the Vosges department
References