Casey
BoyIrish
Casey is a boy name of Irish origin meaning "Vigilant or watchful".
About this name
Gender
Boy
Language
Irish
Popularity
15 / 100
Syllables
2
Length
5 letters
Meaning
Vigilant or watchful
Etymology
Casey is a given name, originally derived from the Irish Gaelic cathasaigh, meaning "vigilant" or "watchful". It can be used as a nickname for the name Cassandra or the initials K.C. It is in use for girls or boys in both the United States, the United Kingdom and other English-speaking countries.
Famous People Named Casey
- Casey Affleck — American actor
- Casey Kasem — American voice actor (1932–2014)
- Casey Stoner — Australian former motorcycle racer
- Casey Neistat — American YouTube personality, filmmaker and entrepreneur
- Casey Robinson — American film director, film producer and screenwriter (1903–1979)
Frequently Asked Questions About Casey
What does the name Casey mean?
Casey means "Vigilant or watchful", and is of Irish origin.
What is the origin of the name Casey?
Casey originates from Irish.
Is Casey a boy or girl name?
Casey is typically used as a boy name.
Are there famous people named Casey?
Yes — notable people named Casey include Casey Affleck (American actor), Casey Kasem (American voice actor, 1932–2014), Casey Stoner (Australian former motorcycle racer), Casey Neistat (American YouTube personality) and Casey Robinson (American film director, 1903–1979).
Last updated: June 2026