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Catelyn
Pronounced KATE-lin /ˈkeɪt.lɪn/High
Meaning: Catelyn is a respelling of Caitlin or Katelyn, the Irish form of Katherine, which reached English through Cateline. The ancient root is uncertain but was linked early to katharos, 'pure,' the meaning it has carried since.Medium
Popularity in the U.S. · SSA data
U.S. births per year (Social Security Administration, 1880–present). Pink marker = peak year.
SSA data updated May 2026. How we source & verify this data.
History & Origin
Catelyn respells Caitlin, the Irish form of Katherine, whose name was tied early on to the Greek katharos, 'pure.' Amid the '90s and 2000s boom in Caitlin spellings, Catelyn took its own path and reached its high point in 2006.
A Catelyn from the peak is now in her late teens. The spelling marks it as a 2000s choice; Caitlin and Katelyn are the fuller forms, and this variant reads as a period stylization rather than a revival.
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Frequently Asked
What does the name Catelyn mean?
Catelyn is a respelling of Caitlin or Katelyn, the Irish form of Katherine, long understood as 'pure.'
How do you pronounce Catelyn?
It's said KATE-lin /ˈkeɪt.lɪn/ — two syllables, stress on the first.
Is Catelyn a boy or girl name?
Catelyn is used as a girl's name, a variant of Caitlin.
How popular is Catelyn?
Catelyn was an uncommon spelling of the popular Caitlin, cresting in the mid-two-thousands.