US Popularity Rank: 3504

Origin: Irish

Meaning: pure

Caitlyn is a girl’s name of Irish and Greek origin. This traditional name has long-standing popularity and translates to “pure.” Simple and feminine, Caitlyn has spawned many different spellings and differences in pronunciation. For example, the traditional spelling of the name is Caitlin, but you may also see it spelled Catelynn or Kaitlyn. This iteration, Caitlyn, is perhaps best known as the name of TV personality and former athlete Caitlyn Jenner.