| Aucun | |
| Commune Status: | Commune |
| Image Coat Of Arms: | Blason de la ville d'Aucun (Hautes-Pyrénées).svg |
| Arrondissement: | Argelès-Gazost |
| Canton: | La Vallée des Gaves |
| Insee: | 65045 |
| Postal Code: | 65400 |
| Mayor: | Corinne Galey[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | Pyrénées Vallées des Gaves |
| Coordinates: | 42.9742°N -0.1911°W |
| Elevation M: | 865 |
| Elevation Min M: | 800 |
| Elevation Max M: | 1804 |
| Area Km2: | 12.94 |
Aucun (pronounced as /fr/) is a commune in the Hautes-Pyrénées department in southwestern France.
It relies on tourism, mountain activities such as mountain biking and hiking and in winter Nordic skiing.