| Saint-Pierre-à-Arnes | |
| Commune Status: | Commune |
| Arrondissement: | Vouziers |
| Canton: | Attigny |
| Insee: | 08393 |
| Postal Code: | 08310 |
| Mayor: | Bertrand Haulin[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | Argonne Ardennaise |
| Coordinates: | 49.3003°N 4.4539°W |
| Elevation M: | 110 |
| Elevation Min M: | 147 |
| Elevation Max M: | 420 |
| Area Km2: | 8.41 |
Saint-Pierre-à-Arnes is a commune in the Ardennes department in northern France.