Cyriacus, also Cyriac or Quiricus is a Latinized form of the Greek Kyriakos, which means "of the Lord". Cyriacus is the name of several people. These include:
- Cyriacus - a Roman nobleman and Christian martyr under Diocletian
- Cyriacus the Anchorite - a Greek monk and saint
- Judas Cyriacus, also known as Cyriacus of Ancona, a saint, martyr, and patron saint of Ancona, Italy
- Quiricus - a child martyr - see Quiricus and Julietta
- Cyriacus of Alexandria, two martyrs, saints, and companions of Faustus, Abibus and Dionysius of Alexandria.
- Cyriacus of Jerusalem
- Quiriacus of Ostia, (d. 235), Bishop of Ostia, Christian martyr and saint
- Quiricus, Bishop of Barcelona
- Quiricus, Bishop of Toledo
- Cyriacus of Ancona, Ciriaco de' Pizzicolli, 15th century traveller and antiquarian in the Aegean
- Cyriacus Buyiruq or Khurchaqus Buyirug, 11th century khan of the Keraites, grandfather of Togoril Khan.
- Cyriak Harris
- Quriaqos of Tagrit, Syriac Orthodox Patriarch of Antioch
- Pope Cyriacus, unknown in the pontifical records, but referenced in the legend of Saint Ursula
|This disambiguation page lists articles associated with the title Cyriacus.
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