Castillos is a small city in the Rocha Department of southeastern Uruguay.

The land is low lying, located not far from the coast, with an average altitude of 44 metres.

It was founded on 19 April 1866 under the name "San Vicente de Castillos", derived from the chapel San Vicente Mártir de Castillos.

[3] Source: Instituto Nacional de Estadística de Uruguay[1] The main plaza of the town is called Plaza Artigas and there is a cemetery in the southeast of town near the junction of Routes 9 and 16.

Most of the streets are named after prominent dates in Uruguayan history and heroic figures, e.g. 25 de Mayo and General Rivera.