Chassezac

{{Short description|River in southern France}}

{{Expand French|date=January 2009|Chassezac|topic=geo}}

{{Infobox river

| name = Chassezac

| image = Chassezac03.jpg

| image_caption = The Chassezac

| map = Chassezac.png

| source1_location = in Saint-Frézal-d'Albuges

| source1_coordinates = {{coord|44|35|30|N|03|46|47|E}}

| mouth_location = Ardèche

| mouth_coordinates = {{coord|44|25|39|N|04|19|12|E|display=inline,title}}

| progression = {{RArdèche}}

| subdivision_type1 = Country

| subdivision_name1 = France

| length = {{convert|84.6|km|mi|abbr=on}}

| source1_elevation = {{convert|1350|m|ft|abbr=on}}

| mouth_elevation = {{convert|95|m|ft|abbr=on}}

| discharge1_avg = {{convert|15.3|m3/s|cuft/s|abbr=on}}

| basin_size = {{convert|560|km2|sqmi|abbr=on}}

}}

The Chassezac ({{IPA|fr|ʃaszak}}; {{langx|oc|Chassesac}}) is an {{convert|84.6|km|mi|abbr=on}} long river in the Lozère, Gard and Ardèche departments in southern France. It is a right tributary of the Ardèche.{{sandre|id=V5040500|nom=Le Chassezac}} Its source is in the commune of Saint-Frézal-d'Albuges, {{convert|2.8|km|mi|abbr=on}} northeast of Les Chazeaux, the main hamlet in the commune. It flows generally southeast and flows into the Ardèche at Saint-Alban-Auriolles, {{convert|1.8|km|mi|abbr=on}} east of the village itself.