Meet Kaitlyn and her sisterhood of variations: Catelyn, Katelynn, Kaitlynn, Kaitlen—the list goes on. They’re all twists on the classic Caitlin, a pretty Irish name that comes from the Celtic “Catherine,” which itself derives from the Greek “aikaterine” (meaning “pure”). Caitlin has been around since the Middle Ages, though some of the variants are more modern. The name, which also belonged to a saint associated with courage and purity, is now more popular spelled Kaitlyn. Kaitlyn Bristowe, a 2016 “Bachelorette,” is a well-known bearer of the name.

Popularity Trend Chart

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Source: Social Security Administration

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