Meaning From Celtic origin meaning 'descendant of Cathasaigh' a variant spelling of the English Casey. Origin of Kaycie Celtic , Irish Popular Middle Names Andrea, Chianne, Jane, LaRae, Leyana, Madison Pronunciation 🔊 Listen Kaycie KAY-see Similar Names Kaci Jyllina Tyro Arleigh Ailis Arieen Leigh Keandra Arte Riann Year by Year Popularity of Kaycie