Meaning A boy's name of English origin, it means "Medieval English form of the Irish Caitlin. 'Pure'." Origin of Katelinn English +-100%Zoom level changed to 1 Popular Middle Names Amira Pronunciation 🔊 Listen Katelinn Similar Names Katlynne Robbin Letitia Sterlyn Waydell Reeves Temple Brucey Parnel Reeford Year by Year Popularity of Katelinn