Willem

Willem is a male given name: 99% of people named Willem are men, and it is recorded as male in 3 of the 3 countries covered.

MaleHigh

Male 99%Female 1%

Verdict: Male
Male / female split: 99% male / 1% female
Confidence: High (64 or more weighted country observations)
Most common in: Netherlands, United States, Belgium
US births since 1880: 2,358 male / 0 female
Data: nam_dict (GFDL) + US SSA
Updated: 2026-09-11

How to address Willem

When you do not know their gender for certain, the full name with no title is the safe choice: "Dear Willem," in English, "Guten Tag Willem," in German. Willem is a male given name: about 99% of people named Willem are men. A quick look at a profile confirms it for certain.

Ready-made greetings in six languages

English

Dear Willem,

German

Guten Tag Willem,

French

Bonjour Willem,

Spanish

Estimado/a Willem:

Chinese

Willem您好：

Japanese

Willem様

English

Hi Willem,

German

Hi Willem,

French

Salut Willem,

Spanish

Hola Willem,

Chinese

Willem你好：

Japanese

Willemさん

Greeting generator

This is a statistical estimate, not a statement about the gender, identity or correct form of address of any particular person.

Country breakdown

Gender of the name Willem by country (nam_dict, 55 country columns)
Country	How common	Usually	Male share
Netherlands	common	man's name	98%
United States	uncommon	man's name	100%
Belgium	uncommon	man's name	98%

United States birth data

2,358 male · 0 female · 2,358 births recorded

Male 100%Female 0%

Since 1980: 100% male.

Frequently asked questions

Is Willem a male or female name?

Willem is a male given name: 99% of people named Willem are men, and it is recorded as male in 3 of the 3 countries covered.

How do I address Willem in an email?

Is Willem a unisex name?

Willem is not a unisex name: 99% of people named Willem are men. Willem leans strongly male overall.

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.

Cite this page

DearWho, "Is Willem a male or female name?", https://dearwho.vercel.app/name/willem (accessed 2026-09-11). Data: nam_dict (J. Michael, GFDL) and US SSA, built 2026-09-11.

BibTeX

@misc{dearwho_willem,
  title  = {Is Willem a male or female name?},
  author = {{DearWho}},
  year   = {2026},
  url    = {https://dearwho.vercel.app/name/willem},
  note   = {Data: nam_dict (GFDL), US SSA public domain}
}