Cailyn

A girls’ name of Irish origin, meaning pure; a modern respelling of Caitlin or Caitlyn.

Babies a year
87
the US, 2017
Rarity
Very rare
among names in use
US popularity
—
outside the top 1000
UK popularity
—
outside the ONS list

Cailyn by the numbers

Cailyn was given to 87 American babies in 2017, the most recent full year we hold.

Its American peak was 401 babies in 2009, so it is a 2000s name that has since fallen a long way.

Other names that come from Caitlin

Like Cailyn, each of these traces back to Caitlin: a form of it, a name built from it, or a son or daughter of it. Not always the same sex.

  • Kaitlynpure; modern respelling of Caitlin or Katelyn929 in the US (2017)
  • Caitlinpure; form of Caitríona33 in England and Wales (2025)
  • Kaitlynnpure; a modern spelling of Caitlín144 in the US (2017)
  • Kaitlinpure; a form of Caitlin or Katherine65 in the US (2017)
  • Keylinpure; a respelling of Katelin, Caitlin or variant of Kaytlin62 in the US (2017)
  • Caitlynnpure; variant of Caitlin41 in the US (2017)
  • Kaytlinpure; a form of Katelin or Caitlin18 in the US (2017)
  • Caitpure; form of Caitlin or Caite6 in the US (2017)

Spelled almost the same

Other names in the records within a letter or two of Cailyn. Close spellings are not always related names, but they are usually worth seeing together.

  • Caitlynpure; a modern variant of Caitlin or Cathleen227 in the US (2017)
  • Caidynbattle; a modern respelling of Caden43 in the US (2017)
  • Cailynnpure; a modern respelling of Caitlyn or Caitlin40 in the US (2017)
  • Cailingirl; young woman29 in the US (2017)
  • Caelyn55 in the US (2017)
  • Carlyn28 in the US (2017)

Sounds like Cailyn

Names that are said the same way as Cailyn, however they are written. Sounding alike does not mean they share a history.

  • Kailynpure; a modern respelling of Caitlin294 in the US (2017)
  • Kaylinpure; a modern respelling of Caitlin or Katelin290 in the US (2017)
  • Kailynnpure; a modern respelling of Caitlin157 in the US (2017)
  • Kaylynpure; a modern respelling of Kaitlyn or Katelyn130 in the US (2017)
  • Kalonbeautiful and good; from kalon14 in the US (2017)
  • Kaileenthe sea; form of Kailea or Kailani10 in the US (2017)

Other names that mean purity

Like Cailyn, each of these has purity in its meaning. Different names, different histories, the same idea.

  • Lillianlily; purity6,139 in the US (2017)
  • Lilythe lily flower; purity2,249 in England and Wales (2025)
  • Katherinepure2,833 in the US (2017)
  • Jadejade stone; symbol of virtue and beauty2,765 in the US (2017)
  • Lilianalily; purity2,747 in the US (2017)
  • Catherinepure; clear1,573 in the US (2017)

Names about as common as Cailyn

Nobody has voted for Cailyn yet

Vote for Cailyn and put it up against all the other baby names

Vote for Cailyn