Boy Name · Irish Origin
Casey
Last reviewed: June 2026
Casey — a boy name from the Irish tradition — is distinctive but not obscure. Its meaning, "Vigilant, watchful", anchors the name in something deeper than sound alone. If Casie is on your shortlist, Casey belongs in the same conversation.
Names like Casey
Frequently asked about Casey
What does the name Casey mean?
Casey means "Vigilant, watchful" and is of Irish origin.
What is the origin of Casey?
Casey originates in Irish naming tradition.
How do you pronounce Casey?
Casey has 5 letters and is most commonly stressed on the first syllable.
Is Casey a boy's or girl's name?
Casey is primarily used as a boy's name in US records.
How popular is Casey in 2026?
In our 2026 popularity tracker, Casey sits in the Top 1000 tier — distinctive but not obscure.
What names are similar to Casey?
Names that share Casey's sound and style include Casie, Case, Cassie, Cassi, Casi.