Casey
English · Boy · 2 syllables
Popularity & facts
Relative popularity index, 2010–2025Popularity over time
Popularity indexHistorical popularity from 1880–2025 · US Social Security Administration data
About the name Casey
The given name 'Casey' originates from the Irish Gaelic surname Ó Cathasaigh, meaning "vigilant" or "watchful," derived from the root *cathasach* (watchful).
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Etymology
The given name 'Casey' originates from the Irish Gaelic surname Ó Cathasaigh, meaning "vigilant" or "watchful," derived from the root *cathasach* (watchful). It is primarily used in Irish and English-speaking cultures, often as a unisex name, with no specific religious association, though it gained popularity in the United States during the 19th-century Irish diaspora.
Casey currently ranks #320 in the United States as a boy's name. It reached its peak popularity around 1990.
Variants & nicknames
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Sibling name ideas
English names that sit beautifully beside CaseySimilar names you might like
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- Callie
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- Cali
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- Caleb
- Callan
- Callahan
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