Is Hadley a male or female name?
Hadley is used as both a female and male name. In counted records, it is associated with female usage in United States at 96% and male usage in England and Wales at 75%. 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
- female
- Probability
- 93%
- Sample size
- 50,344
- Confidence
- high
Hadley 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 | female | 96% | 46,376 | ssa |
| Canada CA | female | 97% | 2,102 | statcan |
| England and Wales GB | male | 75% | 1,846 | ons |
| Poland PL | female | 67% | 6 | pesel |
| France FR | male | 100% | 5 | insee |
| Ireland IE | female | 100% | 4 | cso |
Attested in 8 countries and territories
Presence means the name appears in a source for that country. Sources without counts cannot support a popularity share.
AU · CA · CH · FR · GB · IE · PL · US
Hadley over time
In the United States, 0% of the babies named Hadley in the 1910s were girls, against 98.9% in the 2020s. The name has changed sides over time, so the answer depends on when a person was born.
| Decade of birth | United States: girls | Babies |
|---|---|---|
| 1910s | 0% | 130 |
| 1920s | 0% | 178 |
| 1930s | 0% | 134 |
| 1940s | 0% | 123 |
| 1950s | 0% | 103 |
| 1960s | 33% | 131 |
| 1970s | 73% | 264 |
| 1980s | 73% | 467 |
| 1990s | 86% | 1,393 |
| 2000s | 93% | 5,322 |
| 2010s | 98% | 25,842 |
| 2020s | 99% | 12,253 |
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 Hadley 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=Hadley&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 Hadley
Is Hadley a male or female name?
Hadley is used as both a female and male name. In counted records, it is associated with female usage in United States at 96% and male usage in England and Wales at 75%. Country context changes the answer.
Why can the result for Hadley 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 Hadley 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.