Meaning Variant of Kaitlyn; innocent and dainty. Origin of Caitlynn Celtic , Irish Popular Middle Names Avery, Lucille, Suzanne Pronunciation 🔊 Listen Caitlynn KATElin Similar Names Jiahui Katariina Clair Averil Ines Jania Lily May Misao Annalyne Rudencinda Year by Year Popularity of Caitlynn