Casey

Casey: name meaning, origin and popularity

Unisex nameSurname origin#320 in 2025

Pronunciation (IPA): /ˈkeɪsi/

Meaning and origin of Casey

  • A male given name transferred from the surname.
  • A female given name transferred from the surname.

Etymology

Anglicisation of an Irish surname Ó Cathasaigh (literally “descendant of (a person named) Watchful”).

How popular is Casey?

#320boys, 2025
1,300U.S. babies in 2025
#80peak rank (1986)
194,775babies since 1880

Since 1880, 78,100 girls and 116,675 boys in the U.S. have been named Casey (40% girls). Its highest rank for girls was #80 in 1986. Its highest rank for boys was #80 in 1987. In 2025 it ranked #320 for boys, with 1,300 babies given the name.

188019201960200020257,510 peak/yr
U.S. births per year with this name, 1880–2025 (SSA)

Names similar to Casey

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

More Surname unisex names

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Sibling name ideas for Casey

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

Casey FAQ

What does the name Casey mean?

A male given name transferred from the surname. A female given name transferred from the surname. Anglicisation of an Irish surname Ó Cathasaigh (literally “descendant of (a person named) Watchful”).

What is the origin of the name Casey?

Casey is listed as a name of Surname (transferred from a surname) origin.

How popular is the name Casey?

Since 1880, 78,100 girls and 116,675 boys in the U.S. have been named Casey (40% girls). Its highest rank for girls was #80 in 1986. Its highest rank for boys was #80 in 1987. In 2025 it ranked #320 for boys, with 1,300 babies given the name.

Is Casey a boy or girl name?

Casey is used for both boys and girls in the U.S. (78,100 girls and 116,675 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.