Gustaf
Gustaf is a male given name: 98% of people named Gustaf are men, and it is recorded as male in 3 of the 3 countries covered.
Gustaf · Gústaf
- Verdict
- Male
- Male / female split
- 98% male / 2% female
- Confidence
- Medium (8 to 63 weighted country observations)
- Most common in
- Sweden, Iceland, United States
- Also spelled
- Gústaf
- US births since 1880
- 723 male / 0 female
- Data
- nam_dict (GFDL) + US SSA
- Updated
- 2026-09-11
How to address Gustaf
When you do not know their gender for certain, the full name with no title is the safe choice: "Dear Gustaf," in English, "Guten Tag Gustaf," in German. Gustaf is a male given name: about 98% of people named Gustaf are men. A quick look at a profile confirms it for certain.
Ready-made greetings in six languages
English
Dear Gustaf,
German
Guten Tag Gustaf,
French
Bonjour Gustaf,
Spanish
Estimado/a Gustaf:
Chinese
Gustaf您好：
Japanese
Gustaf様
English
Hi Gustaf,
German
Hi Gustaf,
French
Salut Gustaf,
Spanish
Hola Gustaf,
Chinese
Gustaf你好：
Japanese
Gustaf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 |
|---|---|---|---|
| Sweden | uncommon | man's name | 98% |
| Iceland | uncommon | man's name | 98% |
| United States | uncommon | man's name | 100% |
United States birth data
723 male · 0 female · 723 births recorded
Since 1980: 100% male.
Frequently asked questions
Is Gustaf a male or female name?
Gustaf is a male given name: 98% of people named Gustaf are men, and it is recorded as male in 3 of the 3 countries covered.
How do I address Gustaf in an email?
When you do not know their gender for certain, the full name with no title is the safe choice: "Dear Gustaf," in English, "Guten Tag Gustaf," in German. Gustaf is a male given name: about 98% of people named Gustaf are men. A quick look at a profile confirms it for certain.
Is Gustaf a unisex name?
Gustaf is not a unisex name: 98% of people named Gustaf are men. Gustaf 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 Gustaf a male or female name?", https://dearwho.vercel.app/name/gustaf (accessed 2026-09-11). Data: nam_dict (J. Michael, GFDL) and US SSA, built 2026-09-11.
BibTeX
@misc{dearwho_gustaf,
title = {Is Gustaf a male or female name?},
author = {{DearWho}},
year = {2026},
url = {https://dearwho.vercel.app/name/gustaf},
note = {Data: nam_dict (GFDL), US SSA public domain}
}