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. Inhabitants are called Oncourtois.
The village is positioned some 3 kilometres (2 mi) to the west of Thaon-les-Vosges, and crossed by the little River Avière, itself a tributary of the Moselle.
Laurent Mariotte, actor and animator with a French radio and television providers, spent a part of his childhood and adolascence at Oncourt.
||Wikimedia Commons has media related to Oncourt.