Casey
Meaning
vigilant, watchful
The story
Casey is Irish, vigilant and watchful in the traditional reading, and it was unisex before America had the word: the ballad engineer who died at the throttle gave it to boys, the mighty striker of Mudville gave it to everyone, and the record gave it to both columns at scale, about 116,700 boys and 78,100 girls all-time, as genuinely two-column as any name at this scale in our records. The arc is generational: 27,600 in the 1970s, cresting at 63,900 in the 1980s beside Derek, then 55,200, and the long settle to 6,900 so far this decade, which now runs about four boys to one girl, the columns quietly re-separating as the name goes vintage. Its Irish root, Cathasaigh, watched from a battlefield; its American century watched from a locomotive and home plate. Names this shared belong to eras; the era is due back.
Popularity, 1890–2024
Shape drawn from US Social Security baby-name records. Casey peaked in the 1990s.
When you meet Casey
Most people given the name Casey in the United States were born between 1980 and 1999. The Casey you meet today is most often in their 30s or 40s.
Estimated from US Social Security birth registrations and typical lifespans; a rough guide, not a rule.
The Casey deep dive
Whether you’re naming a baby or exploring your own name’s history, this is a personal letter, not a list: where Casey truly comes from, how it traveled, and what a century of records reveals. If you have grown a tree on nametree, it also considers how Casey fits with your family’s names and surname.
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