Castillo

Castillo may refer to:

Places
 Dominican Republic 
Castillo, Dominican Republic, a town in Duarte Province, Dominican Republic

 Spain 
Castillo, Álava, a village in the Basque Country
Castillo-Albaráñez, a municipality in Cuenca, Castile-La Mancha
Castillo de Garcimuñoz, a municipality in Cuenca, Castile-La Mancha
Castillo-Nuevo, a town in Navarre
Montealegre del Castillo, a municipality in Albacete, Castile-La Mancha

 Nicaragua 
El Castillo (municipality), a municipality in the Río San Juan department
El Castillo (village), a village in the Río San Juan department