Villarta de San Juan is a municipality of Spain belonging to the province of Ciudad Real, in the autonomous community of Castilla–La Mancha.

Housing lies on the left (southern) bank of the Cigüela.

Villarta was seemingly settled by the Hospitallers in 1236, perhaps dependant on nearby Arenas de San Juan.

[2] The municipality has a total area of 66.00 km2 and, as of 1 January 2022, it has a registered population of 2,713.

This article about a location in the autonomous community of Castilla–La Mancha, Spain is a stub.