Ciriaco is a male given name in Italian () and Spanish (). In Portuguese, it's spelled Ciríaco ().
It derives from the Greek given name Κυριακός (also Κυριάκος) which means of the Lord or lordly; from the Greek kύριος, kyrios: lord. Thus it is equivalent in meaning to names like Dominic, Dominicus and Domenico.
It may refer to:
People Given name Ciriaco Álvarez (born 1873), Chiloé businessman Ciriaco Errasti, a Spanish footballer Ciriaco De Mita, Italian politician, Prime Minister of Italy (1988–1989) Ciriaco de' Pizzicolli, or Cyriacus of Ancona, an Italian antiquarian and traveller of the 15th century Ciriaco Cañete, a Filipino martial artist Ciriaco Sforza, a Swiss footballer
Surname Pedro Ciriaco (born 1985), Dominican baseball player for the Boston Red Sox, brother of Audy Ciriaco
Places Ciríaco, Brazilian municipality
See also Quirico Quirino (disambiguation)