The canton of South Châtellerault is a former French canton of the Vienne département in the Poitou-Charentes région of France. It was disbanded following the French canton reorganisation which came into effect in March 2015. It consisted of three communes: the primary town of Châtellerault (partly), Naintré, and Senillé. Its population was 15,161 in 2012.

46°47′12″N 0°32′51″E / 46.78667°N 0.54750°E / 46.78667; 0.54750