| Joannas | |
| Commune Status: | Commune |
| Image Coat Of Arms: | Blason ville fr Joannas (Ardèche).svg |
| Arrondissement: | Largentière |
| Canton: | Vallon-Pont-d'Arc |
| Insee: | 07109 |
| Postal Code: | 07110 |
| Mayor: | Bernard Vedovato[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | Val de Ligne |
| Coordinates: | 44.5664°N 4.2525°W |
| Elevation M: | 400 |
| Elevation Min M: | 309 |
| Elevation Max M: | 1207 |
| Area Km2: | 11.93 |
Joannas is a commune in the Ardèche department in southern France.
There are two castles at Joannas: the castle of Logères was built in the 12th century. The castle of Joannas which contains the town hall, was inscribed in 1985 as an historical monument.
The church is named Notre-Dame de l'Annonciation.