Kaitlyn: Meaning, origin and popularity

Pronounced KAYT-lin · 2 syllables

A given name from Irish, one of the modern spelling variants of Caitlin.

How popular is Kaitlyn?

Kaitlyn was the #799 name in the US in 2025, given to 340 babies. It’s used less than it was: down 84% on 2011–2015. It peaked around 1990.

Babies named Kaitlyn in the US by five-year period, relative to its peak (around 1990).

Half of US adults named Kaitlyn are older than 29; most are between 19 and 39. (Estimated from US births by year and life tables.)

Names that real brothers and sisters of people named Kaitlyn have, from family records on Wikidata, most common first.

Chosen by the same families or with a similar style and era.

Kaitlyn is pronounced KAYT-lin.

Kaitlyn was the #799 name in the US in 2025, given to 340 babies. It’s used less than it was: down 84% on 2011–2015. It peaked around 1990.

Half of US adults named Kaitlyn are older than 29. Most are between 19 and 39.