| Gissac | |
| Commune Status: | Commune |
| Arrondissement: | Millau |
| Canton: | Causses-Rougiers |
| Insee: | 12109 |
| Postal Code: | 12360 |
| Mayor: | Julien Manibal[1] |
| Term: | 2023 - 2026 |
| Coordinates: | 43.8472°N 2.9325°W |
| Elevation M: | 550 |
| Elevation Min M: | 351 |
| Elevation Max M: | 769 |
| Area Km2: | 31.02 |
Gissac (pronounced as /fr/) is a commune in the Aveyron department in southern France.
The Château de Montaigut is a medieval castle that is open to visitors.