Meaning A girl's name of English origin, it means "Medieval English form of the Irish Caitlin. Pure." Origin of Katlin English +-100%Zoom level changed to 1 Popular Middle Names Elizabeth, Ann Pronunciation 🔊 Listen Katlin Similar Names Katelin Kateline Katlynn Kitlyn Katelyn Kaytlin Caitlyn Caitlin-Rose Catlin Latesha Year by Year Popularity of Katlin