Canton of Saint-Chamond-Sud

The canton of Saint-Chamond-Sud is a French former administrative division located in the department of Loire and the Rhône-Alpes region. It was disbanded following the French canton reorganisation which came into effect in March 2015. It had 19,536 inhabitants (2012).

The canton comprised the following communes:
 * Saint-Chamond (partly)
 * La Valla-en-Gier