| Liart | |
| Commune Status: | Commune |
| Image Coat Of Arms: | Blason ville fr Liart (Ardennes).svg |
| Arrondissement: | Charleville-Mézières |
| Canton: | Signy-l'Abbaye |
| Insee: | 08254 |
| Postal Code: | 08290 |
| Mayor: | Jacques Génon[1] |
| Term: | 2024 - 2026 |
| Intercommunality: | Ardennes Thiérache |
| Coordinates: | 49.7708°N 4.3422°W |
| Elevation M: | 226 |
| Area Km2: | 13.44 |
Liart (in French pronounced as /ljaʁ/) is a commune in the Ardennes department in northern France.