Nicolaas
Nicolaas is a male given name: 99% of people named Nicolaas are men, and it is recorded as male in 4 of the 4 countries covered.
- Verdict
- Male
- Male / female split
- 99% male / 1% female
- Confidence
- Medium (8 to 63 weighted country observations)
- Most common in
- United States, Belgium, Netherlands
- US births since 1880
- 398 male / 0 female
- Data
- nam_dict (GFDL) + US SSA
- Updated
- 2026-09-11
How to address Nicolaas
When you do not know their gender for certain, the full name with no title is the safe choice: "Dear Nicolaas," in English, "Guten Tag Nicolaas," in German. Nicolaas is a male given name: about 99% of people named Nicolaas are men. A quick look at a profile confirms it for certain.
Ready-made greetings in six languages
English
Dear Nicolaas,
German
Guten Tag Nicolaas,
French
Bonjour Nicolaas,
Spanish
Estimado/a Nicolaas:
Chinese
Nicolaas您好：
Japanese
Nicolaas様
English
Hi Nicolaas,
German
Hi Nicolaas,
French
Salut Nicolaas,
Spanish
Hola Nicolaas,
Chinese
Nicolaas你好：
Japanese
Nicolaas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 |
|---|---|---|---|
| United States | rare | man's name | 100% |
| Belgium | rare | man's name | 98% |
| Netherlands | rare | man's name | 98% |
| East Frisia | rare | man's name | 98% |
United States birth data
398 male · 0 female · 398 births recorded
Since 1980: 100% male.
Frequently asked questions
Is Nicolaas a male or female name?
Nicolaas is a male given name: 99% of people named Nicolaas are men, and it is recorded as male in 4 of the 4 countries covered.
How do I address Nicolaas in an email?
When you do not know their gender for certain, the full name with no title is the safe choice: "Dear Nicolaas," in English, "Guten Tag Nicolaas," in German. Nicolaas is a male given name: about 99% of people named Nicolaas are men. A quick look at a profile confirms it for certain.
Is Nicolaas a unisex name?
Nicolaas is not a unisex name: 99% of people named Nicolaas are men. Nicolaas 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 Nicolaas a male or female name?", https://dearwho.vercel.app/name/nicolaas (accessed 2026-09-11). Data: nam_dict (J. Michael, GFDL) and US SSA, built 2026-09-11.
BibTeX
@misc{dearwho_nicolaas,
title = {Is Nicolaas a male or female name?},
author = {{DearWho}},
year = {2026},
url = {https://dearwho.vercel.app/name/nicolaas},
note = {Data: nam_dict (GFDL), US SSA public domain}
}