US Popularity Rank: 2548

Origin: Greek

Meaning: Clean, clear, pure

Kailyn is a girl’s name of Greek origin. A playful variation on Katherine, this bright, spirited name means “clean, “clear,” or “pure” and is also derived from Kaylyn. In recent years, it has risen in popularity with its trendy -lyn ending. With so many endearing versions that have delighted parents—like Kaelyn, Cailyn, and Kalyn—Kailyn is sure to hold the key to your heart.