Is Casey a male or female name?
Casey is used as both a female and male name. In counted records, it is associated with female usage in England and Wales at 61% and male usage in United States at 60%. Country context changes the answer.
Result without a country hint
This is the response used when the request does not supply a country. It is a fallback, not a claim that every country has the same distribution.
- Association
- male
- Probability
- 58%
- Sample size
- 214,658
- Confidence
- high
Casey by country
Only sources that publish observation counts appear in this table. The probability is the dominant-gender share within that country source; sample sizes from different countries cover different years and should not be treated as population rankings.
| Country | Association | Probability | Sample | Source |
|---|---|---|---|---|
| United States US | male | 60% | 193,422 | ssa |
| England and Wales GB | female | 61% | 13,829 | ons |
| Canada CA | male | 59% | 5,158 | statcan |
| Ireland IE | female | 65% | 1,440 | cso |
| France FR | male | 76% | 580 | insee |
| Switzerland CH | male | 53% | 123 | bfs |
| Poland PL | male | 58% | 71 | pesel |
| Austria AT | female | 51% | 35 | statat |
Attested in 12 countries and territories
Presence means the name appears in a source for that country. Sources without counts cannot support a popularity share.
AT · AU · BE · CA · CH · FR · GB · IE · NZ · PL · SE · US
Casey over time
In the United States, 0% of the babies named Casey in the 1910s were girls, against 22.1% in the 2020s. The name has changed sides over time, so the answer depends on when a person was born. In France, 36.1% of the babies named Casey in the 2000s were girls, against 18.6% in the 2010s.
| Decade of birth | United States: girls | Babies | France: girls | Babies |
|---|---|---|---|---|
| 1910s | 0% | 444 | — | |
| 1920s | 3% | 357 | — | |
| 1930s | 0% | 277 | — | |
| 1940s | 8% | 618 | — | |
| 1950s | 14% | 3,083 | — | |
| 1960s | 17% | 5,685 | — | |
| 1970s | 31% | 27,635 | — | |
| 1980s | 44% | 63,892 | — | |
| 1990s | 47% | 55,143 | — | |
| 2000s | 43% | 21,378 | 36% | 180 |
| 2010s | 39% | 9,152 | 19% | 295 |
| 2020s | 22% | 5,626 | — |
Births per decade from the US Social Security Administration (1880–2024) and INSEE (France, 1900–2025); decades with fewer than 100 babies are left out. See boys' names that became girls' names and French names that changed sex.
Look up Casey with a country
Send a reliable two-letter country code when you have one. Preserve probability, sample size, confidence and source with the category.
curl "https://namegender.com/api/v1/gender?name=Casey&country=US" \
-H "Authorization: Bearer ng_live_xxxxxxxxxxxx"Copy failed. Select and copy the text.
Method and limits
Counted rows come from national registration sources that publish male and female totals. The attested-country list also includes sources that confirm presence but do not publish a sample size. Those two evidence types are kept separate.
Name data describes a population-level association. It does not identify an individual person's gender. Preserve unknown and low-confidence results, and do not use name inference for employment, medical, financial, insurance, legal or eligibility decisions.
Data version: 2026.10. Read the benchmark methodology and database provenance before applying a threshold.
Questions about Casey
Is Casey a male or female name?
Casey is used as both a female and male name. In counted records, it is associated with female usage in England and Wales at 61% and male usage in United States at 60%. Country context changes the answer.
Why can the result for Casey change by country?
A name can have different observed distributions in different populations. A country hint narrows the evidence used by the API instead of treating one global result as universal.
Does the name Casey identify a person's gender?
No. This page describes statistical associations in name records. It cannot identify an individual person and should not be used for consequential decisions.