Cyriacus (name)
- Ancient Greek language
- Canons Regular of the Penitence of the Blessed Martyrs
- Christian
- Cyriaca
- Cyriack
- Cyriacus
- Cyriacus I of Byzantium
- Cyriacus II of Constantinople
- Cyriacus of Ancona
- Cyriacus of Carthage
- Cyriacus of Jerusalem
- Cyriacus the Anchorite
- Cyriak
- Cyril
- Dominic
- Faustus, Abibus and Dionysius of Alexandria
- Judas Cyriacus
- Kirakos Gandzaketsi
- Kuriakose
- Kuriakose Elias Chavara
- Kyriacos
- Kyriakos (name)
- Latin
- Quiriacus of Ostia
- Quiricus (disambiguation)
- Quriaqos of Tagrit
- Saint Cyriakus, Gernrode