Katelyn

Katelyn: name meaning, origin and popularity

Girl nameIrish origin

Meaning and origin of Katelyn

  • A female given name from Irish, variant of Caitlin.

How popular is Katelyn?

225U.S. babies in 2025
#52peak rank (2001)
134,206babies since 1880

Since 1880, 134,049 girls and 157 boys in the U.S. have been named Katelyn (100% girls). Its highest rank for girls was #52 in 2001. Its highest rank for boys was #3412 in 2004. In 2025, 225 babies were given the name, outside the top 1,000.

188019201960200020255,975 peak/yr
U.S. births per year with this name, 1880–2025 (SSA)

Names similar to Katelyn

Names that start with the same letters, most popular first.

More Irish girl names

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Sibling name ideas for Katelyn

Sister and brother names that share Katelyn's Irish roots and are still in the U.S. top 1,000.

Katelyn FAQ

What does the name Katelyn mean?

A female given name from Irish, variant of Caitlin.

What is the origin of the name Katelyn?

Katelyn is listed as a name of Irish origin.

How popular is the name Katelyn?

Since 1880, 134,049 girls and 157 boys in the U.S. have been named Katelyn (100% girls). Its highest rank for girls was #52 in 2001. Its highest rank for boys was #3412 in 2004. In 2025, 225 babies were given the name, outside the top 1,000.

Is Katelyn a boy or girl name?

Katelyn is mostly a girl name in the U.S.: 134,049 girls and 157 boys since 1880.

Popularity data: U.S. Social Security Administration baby name data, 1880–2025 (names given to 5+ babies per year). Origin and etymology text: Wiktionary, available under CC BY-SA 4.0.