| Chassezac | |
| Map: | Chassezac.png |
| Source1 Location: | in Saint-Frézal-d'Albuges |
| Source1 Coordinates: | 44.5917°N 3.7797°W |
| Mouth Location: | Ardèche |
| Mouth Coordinates: | 44.4275°N 4.32°W |
| Subdivision Type1: | Country |
| Subdivision Name1: | France |
| Length: | 84.6km (52.6miles) |
| Source1 Elevation: | 1350m (4,430feet) |
| Mouth Elevation: | 95m (312feet) |
| Discharge1 Avg: | 15.3m3/s |
| Basin Size: | 560km2 |
The Chassezac (in French pronounced as /ʃaszak/; Occitan (post 1500);: Chassesac) is an 84.6km (52.6miles) long river in the Lozère, Gard and Ardèche departments in southern France. It is a right tributary of the Ardèche. Its source is in the commune of Saint-Frézal-d'Albuges, 2.8km (01.7miles) northeast of Les Chazeaux, the main hamlet in the commune. It flows generally southeast and flows into the Ardèche at Saint-Alban-Auriolles, 1.8km (01.1miles) east of the village itself.
The following list is ordered from source to mouth :