The Picoña Castle (Spanish: Castillo de Picoña; Galician: Castelo da Picoña; Portuguese: Castelo da Piconha) is a Portuguese medieval fortification now situated in the Spanish municipality of Calvos de Randín, Ourense, Galicia. The castle, now in ruins, dates back to the early period of Portuguese independence (12th century) and was constructed over a previous Callaeci fort. In 1650 it was destroyed by Castilian troops during the Portuguese war of Restoration.