Willi
Willi is a male given name: 97% of people named Willi are men, and it is recorded as male in 5 of the 7 countries covered.
- Verdict
- Male
- Male / female split
- 97% male / 3% female
- Confidence
- High (64 or more weighted country observations)
- Most common in
- Switzerland, Germany, East Frisia
- US births since 1880
- 144 male / 0 female
- Data
- nam_dict (GFDL) + US SSA
- Updated
- 2026-09-11
How to address Willi
When you do not know their gender for certain, the full name with no title is the safe choice: "Dear Willi," in English, "Guten Tag Willi," in German. Willi is a male given name: about 97% of people named Willi are men. A quick look at a profile confirms it for certain.
Ready-made greetings in six languages
English
Dear Willi,
German
Guten Tag Willi,
French
Bonjour Willi,
Spanish
Estimado/a Willi:
Chinese
Willi您好：
Japanese
Willi様
English
Hi Willi,
German
Hi Willi,
French
Salut Willi,
Spanish
Hola Willi,
Chinese
Willi你好：
Japanese
Williさん
This is a statistical estimate, not a statement about the gender, identity or correct form of address of any particular person.
Country breakdown
| Country | How common | Usually | Male share |
|---|---|---|---|
| Switzerland | uncommon | man's name | 98% |
| Germany | uncommon | man's name | 98% |
| East Frisia | uncommon | man's name | 98% |
| Austria | uncommon | man's name | 98% |
| United States | rare | man's name | 100% |
| Great Britain | rare | man's name | 75% |
| Netherlands | rare | unisex name | 50% |
United States birth data
144 male · 0 female · 144 births recorded
Since 1980: 100% male.
Frequently asked questions
Is Willi a male or female name?
Willi is a male given name: 97% of people named Willi are men, and it is recorded as male in 5 of the 7 countries covered.
How do I address Willi in an email?
When you do not know their gender for certain, the full name with no title is the safe choice: "Dear Willi," in English, "Guten Tag Willi," in German. Willi is a male given name: about 97% of people named Willi are men. A quick look at a profile confirms it for certain.
Is Willi a unisex name?
Willi is not a unisex name: 97% of people named Willi are men. Willi leans strongly male overall.
Related names
Sources
Gender by country: nam_dict, the c't first-names dictionary by Joerg Michael, roughly 44,000 names across 55 countries, licensed GFDL. US frequencies: United States Social Security Administration baby-name data, public domain. Method: how we classify names. Full dataset: data & licences. Data built 2026-09-11.
DearWho, "Is Willi a male or female name?", https://dearwho.vercel.app/name/willi (accessed 2026-09-11). Data: nam_dict (J. Michael, GFDL) and US SSA, built 2026-09-11.
BibTeX
@misc{dearwho_willi,
title = {Is Willi a male or female name?},
author = {{DearWho}},
year = {2026},
url = {https://dearwho.vercel.app/name/willi},
note = {Data: nam_dict (GFDL), US SSA public domain}
}