Meaning Cian is a boys name of Celtic origin, from Irish legend meaning "ancient one". Origin of Cian Celtic , Irish Popular Middle Names Alexander, Axton, Ayala, Donovan, Eamonn, Mark, Paul, Thomas, Ty Pronunciation 🔊 Listen Cian KIYAH-N Similar Names Atrus Arturs Conal Artie Artturi Carrol Cassivellaunus Gruddieu Brodrick Desmon Year by Year Popularity of Cian