Casey
Casey is a unisex name of Irish origin meaning “brave in battle, vigilant.” It ranked #320 in the United States in 2025. Derived from the Irish Gaelic Cathasaigh, meaning vigilant or watchful.
how do you pronounce Casey?
KAY-see
Hear it spoken aloud with our AI pronunciation tool.
what does Casey mean?
The name Casey means “brave in battle, vigilant.” It comes from the Irish language tradition.
Derived from the Irish Gaelic Cathasaigh, meaning vigilant or watchful. It became popular in the United States in the 20th century, boosted by the legend of railroad engineer Casey Jones.
where does the name Casey come from?
Wiktionary and Wikipedia agree Casey is an anglicization of the Irish surname Ó Cathasaigh, meaning descendant of the watchful or vigilant one.
the history of Casey
Wikipedia notes it is also used as a nickname for Cassandra or for the initials K.C., and is used for both girls and boys in the US, UK and other English-speaking countries; the retrieved sources say nothing about the Casey Jones railroad legend often cited elsewhere.
how popular is this name?
| Year | Rank |
|---|---|
| 2025 | #320 |
| 2024 | #310 |
| 2023 | #316 |
| 2022 | #336 |
| 2021 | #447 |
| 2020 | #517 |
Source: SSA National Baby Names Dataset
who are famous people named Casey?
- Casey Affleck
- Casey Stengel
- Casey Kasem
what names go well with Casey?
Sibling names that share Casey's rhythm and register without echoing it too closely.
Last reviewed April 30, 2026 · Curated by HushName editorial
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