Nicolaj
Nicolaj is a male given name: 98% of people named Nicolaj are men, and it is recorded as male in 1 of the 1 countries covered.
We have limited data on this name. Treat the verdict as a lead, not a certainty.
- Verdict
- Male
- Male / female split
- 98% male / 2% female
- Confidence
- Low (fewer than 8 weighted country observations)
- Most common in
- Denmark
- Data
- nam_dict (GFDL) + US SSA
- Updated
- 2026-09-11
How to address Nicolaj
When you do not know their gender for certain, the full name with no title is the safe choice: "Dear Nicolaj," in English, "Guten Tag Nicolaj," in German. Nicolaj is a male given name: about 98% of people named Nicolaj are men. A quick look at a profile confirms it for certain.
Ready-made greetings in six languages
English
Dear Nicolaj,
German
Guten Tag Nicolaj,
French
Bonjour Nicolaj,
Spanish
Estimado/a Nicolaj:
Chinese
Nicolaj您好：
Japanese
Nicolaj様
English
Hi Nicolaj,
German
Hi Nicolaj,
French
Salut Nicolaj,
Spanish
Hola Nicolaj,
Chinese
Nicolaj你好：
Japanese
Nicolaj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 |
|---|---|---|---|
| Denmark | rare | man's name | 98% |
Frequently asked questions
Is Nicolaj a male or female name?
Nicolaj is a male given name: 98% of people named Nicolaj are men, and it is recorded as male in 1 of the 1 countries covered.
How do I address Nicolaj in an email?
When you do not know their gender for certain, the full name with no title is the safe choice: "Dear Nicolaj," in English, "Guten Tag Nicolaj," in German. Nicolaj is a male given name: about 98% of people named Nicolaj are men. A quick look at a profile confirms it for certain.
Is Nicolaj a unisex name?
Nicolaj is not a unisex name: 98% of people named Nicolaj are men. Nicolaj 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 Nicolaj a male or female name?", https://dearwho.vercel.app/name/nicolaj (accessed 2026-09-11). Data: nam_dict (J. Michael, GFDL) and US SSA, built 2026-09-11.
BibTeX
@misc{dearwho_nicolaj,
title = {Is Nicolaj a male or female name?},
author = {{DearWho}},
year = {2026},
url = {https://dearwho.vercel.app/name/nicolaj},
note = {Data: nam_dict (GFDL), US SSA public domain}
}