US Popularity Rank: 4227

Origin: Irish

Meaning: slim and fair; who is like God; keeper of the keys; pure

Kaylyn is a modern girl's name with international ties. The meaning of Kaylyn is “clean,” “clear,” and "pure," stemming from the nickname Kay, connected to the Greek Katherine. With so many positive and virtuous interpretations, baby Kaylyn couldn't possibly be anything but a dream! Kaylyn hits the sweet spot of being recognizable and familiar while also enjoying status as a rare and unique choice for baby. It is related to the names Kayla and Kaylin.