Isidor
Isidor is a male given name: 99% of people named Isidor are men, and it is recorded as male in 7 of the 7 countries covered.
Isidor · Ísidór
- Verdict
- Male
- Male / female split
- 99% male / 1% female
- Confidence
- Medium (8 to 63 weighted country observations)
- Most common in
- United States, Albania, Germany
- Also spelled
- Ísidór
- US births since 1880
- 384 male / 0 female
- Data
- nam_dict (GFDL) + US SSA
- Updated
- 2026-09-11
How to address Isidor
When you do not know their gender for certain, the full name with no title is the safe choice: "Dear Isidor," in English, "Guten Tag Isidor," in German. Isidor is a male given name: about 99% of people named Isidor are men. A quick look at a profile confirms it for certain.
Ready-made greetings in six languages
English
Dear Isidor,
German
Guten Tag Isidor,
French
Bonjour Isidor,
Spanish
Estimado/a Isidor:
Chinese
Isidor您好：
Japanese
Isidor様
English
Hi Isidor,
German
Hi Isidor,
French
Salut Isidor,
Spanish
Hola Isidor,
Chinese
Isidor你好：
Japanese
Isidor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% |
| Albania | rare | man's name | 98% |
| Germany | rare | man's name | 98% |
| Iceland | rare | man's name | 98% |
| Romania | rare | man's name | 98% |
| Serbia | rare | man's name | 98% |
| Sweden | rare | man's name | 98% |
United States birth data
384 male · 0 female · 384 births recorded
Frequently asked questions
Is Isidor a male or female name?
Isidor is a male given name: 99% of people named Isidor are men, and it is recorded as male in 7 of the 7 countries covered.
How do I address Isidor in an email?
When you do not know their gender for certain, the full name with no title is the safe choice: "Dear Isidor," in English, "Guten Tag Isidor," in German. Isidor is a male given name: about 99% of people named Isidor are men. A quick look at a profile confirms it for certain.
Is Isidor a unisex name?
Isidor is not a unisex name: 99% of people named Isidor are men. Isidor 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 Isidor a male or female name?", https://dearwho.vercel.app/name/isidor (accessed 2026-09-11). Data: nam_dict (J. Michael, GFDL) and US SSA, built 2026-09-11.
BibTeX
@misc{dearwho_isidor,
title = {Is Isidor a male or female name?},
author = {{DearWho}},
year = {2026},
url = {https://dearwho.vercel.app/name/isidor},
note = {Data: nam_dict (GFDL), US SSA public domain}
}