| Longwé | |
| Commune Status: | Commune |
| Arrondissement: | Vouziers |
| Canton: | Attigny |
| Insee: | 08259 |
| Postal Code: | 08400 |
| Mayor: | Patrick Lesoille[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | Argonne Ardennaise |
| Coordinates: | 49.3904°N 4.7879°W |
| Elevation M: | 174 |
| Area Km2: | 10.78 |
Longwé (in French pronounced as /lɔ̃ve/) is a commune in the Ardennes department and Grand Est region of north-eastern France.