Cantaracillo is a village and municipality in the province of Salamanca, in western Spain. It forms part of the autonomous community of Castile and León.
The village lies about 42 kilometres (26 miles) from the city of Salamanca, the provincial capital. The municipality covers an area of 37 square kilometres (14 square miles).
As of 2016, Cantaracillo had a population of 204 people.