US Popularity Rank: 937

Origin: Irish

Meaning: Little dark one, Black-haired

Kieran is a boy’s name of Irish origin and the Anglicized spelling of the Gaelic surname “O’Ciarán” (pronounced o keer-awn). Kieran means “little dark one” or “black-haired.” One popular holder of this name is Saint Ciarán of Clonmacnoise, a famous Christian Bishop who is said to be one of the Twelve Apostles of Ireland. The name Ciarán is said to have existed in the Irish language for over 1,500 years, a truly timeless moniker! Naming baby Kieran offers a fresh and modern take on a beloved, historical title.