| Marcq | |
| Commune Status: | Commune |
| Arrondissement: | Vouziers |
| Canton: | Attigny |
| Insee: | 08274 |
| Postal Code: | 08250 |
| Mayor: | Séverine Lallement[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | Argonne Ardennaise |
| Coordinates: | 49.32°N 4.924°W |
| Elevation M: | 155 |
| Elevation Min M: | 117 |
| Elevation Max M: | 242 |
| Area Km2: | 10.61 |
Marcq (in French pronounced as /maʁk/) is a commune in the Ardennes department in northern France.