| Monthermé | |
| Commune Status: | Commune |
| Image Coat Of Arms: | Blason ville fr Monthermé (Ardennes).svg |
| Arrondissement: | Charleville-Mézières |
| Canton: | Bogny-sur-Meuse |
| Insee: | 08302 |
| Postal Code: | 08800 |
| Mayor: | Catherine Joly[1] |
| Term: | 2020–2026 |
| Intercommunality: | Vallées et Plateau d'Ardenne |
| Elevation M: | 156 |
| Area Km2: | 32.33 |
Monthermé (in French pronounced as /mɔ̃tɛʁme/) is a commune in the Ardennes department in northern France.
The river Semois (or Semoy) joins the river Meuse in Monthermé.