| Vieux-Thann | |
| Commune Status: | Commune |
| Image Coat Of Arms: | Blason de la ville de Vieux-Thann (68).svg |
| Arrondissement: | Thann-Guebwiller |
| Canton: | Cernay |
| Insee: | 68348 |
| Postal Code: | 68800 |
| Mayor: | Daniel Neff[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | Thann-Cernay |
| Coordinates: | 47.8028°N 7.1217°W |
| Elevation M: | 325 |
| Elevation Min M: | 312 |
| Elevation Max M: | 642 |
| Area Km2: | 5.11 |
Vieux-Thann (in French pronounced as /vjø tan/, literally Old Thann; German: Altthann) is a commune in the Haut-Rhin department in Grand Est in north-eastern France.