| Saint-Étienne-à-Arnes | |
| Commune Status: | Commune |
| Image Coat Of Arms: | Blason Saint-Étienne-à-Arnes.svg |
| Arrondissement: | Vouziers |
| Canton: | Attigny |
| Insee: | 08379 |
| Postal Code: | 08310 |
| Mayor: | Elise Roussy[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | Argonne Ardennaise |
| Coordinates: | 49.3108°N 4.4942°W |
| Elevation M: | 115 |
| Elevation Min M: | 114 |
| Elevation Max M: | 208 |
| Area Km2: | 29.56 |
Saint-Étienne-à-Arnes is a commune in the Ardennes department and Grand Est region of north-eastern France.