Caitlyn

Meaning of Caitlyn

Caitlyn means "pure." It's an Irish form of the name Katherine.

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

Popularity of Caitlyn

After ranking as high as #118 in 2000, Caitlyn has fallen out of the US top 1,000 as of 2025.

Notable people named Caitlyn

• Caitlyn Jenner
  Television personality and athlete
• Caitlin Bassett
  Australian netball player
• Caitlin Foord
  Australian soccer player
• Caitlin Gerard
  American actress
• Caitlin Cary
  American alternative country musician

More Irish names

Questions about the name Caitlyn

What does the name Caitlyn mean?

Caitlyn means caitlyn means "pure." it's an irish form of the name katherine, and it comes from Irish origins.

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

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

How popular is the name Caitlyn?

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

When was Caitlyn most popular?

Caitlyn peaked at #118 in 2000.