| Doncourt-lès-Longuyon | |
| Commune Status: | Commune |
| Image Coat Of Arms: | Blason Doncourt-lès-Longuyon 54.svg |
| Arrondissement: | Briey |
| Canton: | Mont-Saint-Martin |
| Insee: | 54172 |
| Postal Code: | 54620 |
| Mayor: | Didier Georges[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | CC Terre Lorraine du Longuyonnais |
| Coordinates: | 49.44°N 5.7128°W |
| Elevation M: | 300 |
| Elevation Min M: | 265 |
| Elevation Max M: | 366 |
| Area Km2: | 5.62 |
Doncourt-lès-Longuyon (in French pronounced as /dɔ̃kuʁ lɛ lɔ̃ɡɥijɔ̃/, literally Doncourt near Longuyon) is a commune in the Meurthe-et-Moselle department in north-eastern France.
During World War I the forest of Doncourt became a training ground for the German Sturm-Bataillon Nr. 5 (Rohr) commanded by Willy Rohr. The German Emperor Wilhelm II visited Rohr and his battalion on 14 August 1916.