Meaning Cian is a boys name of Celtic origin, from Irish legend meaning "ancient one". Origin of Cian Celtic , Irish +-100%Zoom level changed to 1 Popular Middle Names Alexander, Axton, Ayala, Donovan, Eamonn, Mark, Paul, Thomas, Ty Pronunciation 🔊 Listen Cian KIYAH-N Similar Names Kean Kien Keanne Kyan Kian Kiean Keon Fergus Keandre Barry Year by Year Popularity of Cian