Meaning A girl's name of English origin, it means "English abbreviation of Katherine. Pure." Origin of Katilyn English +-100%Zoom level changed to 1 Popular Middle Names Alison, Carly, Renae, Samira Pronunciation 🔊 Listen Katilyn Similar Names Kat Karrin Karyn Karren Katherina Kathrynn Kasia Katelyn Kathryn Grace Katie-Louise Year by Year Popularity of Katilyn