Cailyn

Meaning of Cailyn

Cailyn is often considered a modern variant of the Irish name 'Caitlin,' which means 'pure'. It can also be seen as a combination of 'Cai' and 'Lyn'.

Cailyn has Irish roots — browse every Irish baby name in our catalog.

Popularity of Cailyn

After ranking as high as #725 in 2009, Cailyn has fallen out of the US top 1,000 as of 2025.

Notable people named Cailyn

• Caitlyn Jenner
  Television personality and Olympian
• Kaitlyn Dever
  American actress
• Kaitlyn Bristowe
  Television personality
• Kaitlyn Lawes
  Canadian Olympic curler
• Kaitlyn Maher
  American teen singer

More Irish names

Questions about the name Cailyn

What does the name Cailyn mean?

Cailyn means cailyn is often considered a modern variant of the irish name 'caitlin,' which means 'pure'. it can also be seen as a combination of 'cai' and 'lyn', and it comes from Irish origins.

Is Cailyn a boy's or a girl's name?

Cailyn is most commonly used as a girl's name in the United States.

How popular is the name Cailyn?

Cailyn did not appear in the top 1,000 baby names in 2025, which makes it a genuinely uncommon pick.

When was Cailyn most popular?

Cailyn peaked at #725 in 2009.