Meaning Derived from the Irish surname 'Ceallach' meaning 'bright-headed' or 'brave warrior'. Origin of Kelly Celtic , Irish Popular Middle Names Marie, Elizabeth, Ann, Anna, Clarissa, Ellison, Gayle, Grace, Jolie, Joy Pronunciation 🔊 Listen Kelly KEL-LEE Similar Names Bedelia Tatayasmin Gracella Lucy Jane Lesleigh Mea Perpetua Ffraid Bernice AnDraya Year by Year Popularity of Kelly