Otto
Otto is a male given name: 99% of people named Otto are men, and it is recorded as male in 17 of the 17 countries covered.
Otto · Ottó
- Verdict
- Male
- Male / female split
- 99% male / 1% female
- Confidence
- High (64 or more weighted country observations)
- Most common in
- United States, Austria, Switzerland
- Also spelled
- Ottó
- US births since 1880
- 31,946 male / 100 female
- Data
- nam_dict (GFDL) + US SSA
- Updated
- 2026-09-11
How to address Otto
When you do not know their gender for certain, the full name with no title is the safe choice: "Dear Otto," in English, "Guten Tag Otto," in German. Otto is a male given name: about 99% of people named Otto are men. A quick look at a profile confirms it for certain.
Ready-made greetings in six languages
English
Dear Otto,
German
Guten Tag Otto,
French
Bonjour Otto,
Spanish
Estimado/a Otto:
Chinese
Otto您好：
Japanese
Otto様
English
Hi Otto,
German
Hi Otto,
French
Salut Otto,
Spanish
Hola Otto,
Chinese
Otto你好：
Japanese
Otto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 | common | man's name | 100% |
| Austria | common | man's name | 98% |
| Switzerland | uncommon | man's name | 98% |
| Germany | uncommon | man's name | 98% |
| Denmark | uncommon | man's name | 98% |
| East Frisia | uncommon | man's name | 98% |
| Norway | uncommon | man's name | 98% |
| Finland | uncommon | man's name | 98% |
| Hungary | uncommon | man's name | 98% |
| Iceland | uncommon | man's name | 98% |
| Netherlands | uncommon | man's name | 98% |
| Slovakia | uncommon | man's name | 98% |
Show all 17 countries
| Country | How common | Usually | Male share |
|---|---|---|---|
| Czech Republic | rare | man's name | 98% |
| Latvia | rare | man's name | 98% |
| Sweden | rare | man's name | 98% |
| Belgium | rare | man's name | 98% |
| Estonia | rare | man's name | 98% |
United States birth data
31,946 male · 100 female · 32,046 births recorded
Since 1980: 100% male.
Frequently asked questions
Is Otto a male or female name?
Otto is a male given name: 99% of people named Otto are men, and it is recorded as male in 17 of the 17 countries covered.
How do I address Otto in an email?
When you do not know their gender for certain, the full name with no title is the safe choice: "Dear Otto," in English, "Guten Tag Otto," in German. Otto is a male given name: about 99% of people named Otto are men. A quick look at a profile confirms it for certain.
Is Otto a unisex name?
Otto is not a unisex name: 99% of people named Otto are men. Otto 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 Otto a male or female name?", https://dearwho.vercel.app/name/otto (accessed 2026-09-11). Data: nam_dict (J. Michael, GFDL) and US SSA, built 2026-09-11.
BibTeX
@misc{dearwho_otto,
title = {Is Otto a male or female name?},
author = {{DearWho}},
year = {2026},
url = {https://dearwho.vercel.app/name/otto},
note = {Data: nam_dict (GFDL), US SSA public domain}
}