Is Lilian a male or female name?
Lilian is used as both a female and male name. In counted records, it is associated with female usage in United States at 100% and male usage in France at 99%. 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
- 51%
- Sample size
- 56,015
- Confidence
- high
Lilian 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 |
|---|---|---|---|---|
| France FR | male | 99% | 27,245 | insee |
| United States US | female | 100% | 19,910 | ssa |
| Switzerland CH | female | 92% | 2,806 | bfs |
| England and Wales GB | female | 100% | 2,012 | ons |
| Spain ES | female | 100% | 1,401 | ine |
| Canada CA | female | 99% | 1,195 | statcan |
| Poland PL | male | 51% | 485 | pesel |
| Austria AT | female | 98% | 453 | statat |
| Ireland IE | female | 100% | 317 | cso |
| Norway NO | female | 100% | 191 | ssb |
Attested in 46 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 · BF · BG · BI · BJ · BR · CA · CD · CF · CG · CH · CI · CM · CN · DJ · DK · EE · ES · FR · GA · GB · GN · HT · HU · IE · IN · LU · MC · MD · MG · ML · MU · NE · NL · NO · PL · RW · SC · SE · SN · TD · TG · US · VU
Lilian over time
In the United States, 100% of the babies named Lilian in the 1880s were girls, against 100% in the 2020s. In France, 31.8% of the babies named Lilian in the 1930s were girls, against 3.2% in the 2020s.
| Decade of birth | United States: girls | Babies | France: girls | Babies |
|---|---|---|---|---|
| 1880s | 100% | 213 | — | |
| 1890s | 100% | 280 | — | |
| 1900s | 100% | 282 | — | |
| 1910s | 100% | 637 | — | |
| 1920s | 100% | 453 | — | |
| 1930s | 100% | 173 | 32% | 220 |
| 1940s | 100% | 154 | 24% | 265 |
| 1950s | 100% | 190 | 11% | 330 |
| 1960s | 100% | 315 | 1% | 1,490 |
| 1970s | 100% | 473 | 0% | 2,600 |
| 1980s | 100% | 717 | 0% | 1,670 |
| 1990s | 100% | 1,816 | 0% | 3,960 |
| 2000s | 100% | 5,779 | 0% | 10,585 |
| 2010s | 100% | 5,924 | 0% | 5,260 |
| 2020s | 100% | 2,504 | 3% | 790 |
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 Lilian 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=Lilian&country=FR" \
-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 Lilian
Is Lilian a male or female name?
Lilian is used as both a female and male name. In counted records, it is associated with female usage in United States at 100% and male usage in France at 99%. Country context changes the answer.
Why can the result for Lilian 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 Lilian 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.