Katlin is an Anglicized variant of the Irish name Caitlín or Caitlin, which itself derives from Catherine. Catherine is generally believed to mean “pure” because of its similarity to the Greek word katharos of the same meaning. There are many variants of this name, including Catelyn, Katelyn, Katlyn and Katelynn, among others. Katlin is a lesser-known spelling of this popular name, making it a unique choice for baby.
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