Is Stacy a male or female name?
Stacy is predominantly associated with female records in the available name data. Without a country hint, NameGender returns female at 89%, based on 195,122 observations.
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
- 89%
- Sample size
- 195,122
- Confidence
- high
Stacy 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 | 88% | 186,132 | ssa |
| France FR | female | 99% | 6,060 | insee |
| Canada CA | female | 99% | 1,240 | statcan |
| England and Wales GB | female | 100% | 1,234 | nrs |
| Ireland IE | female | 100% | 252 | cso |
| Switzerland CH | female | 100% | 156 | bfs |
| Poland PL | female | 88% | 32 | pesel |
| Austria AT | female | 100% | 16 | statat |
Attested in 63 countries and territories
Presence means the name appears in a source for that country. Sources without counts cannot support a popularity share.
AG · AT · AU · BB · BD · BE · BI · BW · BZ · CA · CB · CH · CM · CY · DM · ER · ES · FJ · FR · GB · GD · GH · GY · IE · IN · JM · KE · KI · KN · LC · LR · LS · ME · MH · MT · MU · MW · NA · NG · NR · NZ · PG · PH · PL · PW · RS · RW · SB · SC · SE · SL · SZ · TO · TT · TV · UG · US · VC · VU · WS · ZA · ZM · ZW
Stacy over time
In the United States, 45.3% of the babies named Stacy in the 1900s were girls, against 92.6% in the 2020s. The name has changed sides over time, so the answer depends on when a person was born. In France, 70.4% of the babies named Stacy in the 1980s were girls, against 100% in the 2020s.
| Decade of birth | United States: girls | Babies | France: girls | Babies |
|---|---|---|---|---|
| 1900s | 45% | 117 | — | |
| 1910s | 32% | 419 | — | |
| 1920s | 24% | 539 | — | |
| 1930s | 17% | 453 | — | |
| 1940s | 36% | 913 | — | |
| 1950s | 75% | 6,437 | — | |
| 1960s | 81% | 43,740 | — | |
| 1970s | 91% | 77,160 | — | |
| 1980s | 96% | 38,521 | 70% | 135 |
| 1990s | 89% | 9,943 | 99% | 2,905 |
| 2000s | 90% | 4,532 | 100% | 2,065 |
| 2010s | 90% | 2,383 | 100% | 820 |
| 2020s | 93% | 875 | 100% | 135 |
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 Stacy 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=Stacy&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 Stacy
Is Stacy a male or female name?
Stacy is predominantly associated with female records in the available name data. Without a country hint, NameGender returns female at 89%, based on 195,122 observations.
Why can the result for Stacy 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 Stacy 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.