Caitlin

Meaning of Caitlin

The name Caitlin means 'pure'. It's a traditional Irish form of Katherine.

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

Popularity of Caitlin

After ranking as high as #76 in 2000, Caitlin has fallen out of the US top 1,000 as of 2025.

Notable people named Caitlin

• Caitlin Clark
  Superstar college basketball player
• Caitlin Doughty
  Mortician, author, YouTube personality
• Caitlin Moran
  British journalist, author, columnist
• Caitlin Stasey
  Australian actress, singer
• Caitlin FitzGerald
  American actress, filmmaker

More Irish names

Questions about the name Caitlin

What does the name Caitlin mean?

Caitlin means the name caitlin means 'pure'. it's a traditional irish form of katherine, and it comes from Irish origins.

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

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

How popular is the name Caitlin?

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

When was Caitlin most popular?

Caitlin peaked at #76 in 2000.