The Communauté de communes Loches Sud Touraine is a communauté de communes, an intercommunal structure, in the Indre-et-Loire department, in the Centre-Val de Loire region, central France. It was created in January 2017 by the merger of the former communautés de communes Loches Développement, Montrésor, Grand Ligueillois and Touraine du Sud. Its population was 54,478 in 2014. Its seat is in Loches.
The communauté de communes consists of the following 68 communes: