Casimer
Casimer is a male given name: 100% of people named Casimer are men, and it is recorded as male in 1 of the 1 countries covered.
- Verdict
- Male
- Male / female split
- 100% male / 0% female
- Confidence
- Medium (8 to 63 weighted country observations)
- Most common in
- United States
- US births since 1880
- 1,895 male / 0 female
- Data
- nam_dict (GFDL) + US SSA
- Updated
- 2026-09-11
How to address Casimer
When you do not know their gender for certain, the full name with no title is the safe choice: "Dear Casimer," in English, "Guten Tag Casimer," in German. Casimer is a male given name: about 100% of people named Casimer are men. A quick look at a profile confirms it for certain.
Ready-made greetings in six languages
English
Dear Casimer,
German
Guten Tag Casimer,
French
Bonjour Casimer,
Spanish
Estimado/a Casimer:
Chinese
Casimer您好：
Japanese
Casimer様
English
Hi Casimer,
German
Hi Casimer,
French
Salut Casimer,
Spanish
Hola Casimer,
Chinese
Casimer你好：
Japanese
Casimer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 | uncommon | man's name | 100% |
United States birth data
1,895 male · 0 female · 1,895 births recorded
Since 1980: 100% male.
Frequently asked questions
Is Casimer a male or female name?
Casimer is a male given name: 100% of people named Casimer are men, and it is recorded as male in 1 of the 1 countries covered.
How do I address Casimer in an email?
When you do not know their gender for certain, the full name with no title is the safe choice: "Dear Casimer," in English, "Guten Tag Casimer," in German. Casimer is a male given name: about 100% of people named Casimer are men. A quick look at a profile confirms it for certain.
Is Casimer a unisex name?
Casimer is not a unisex name: 100% of people named Casimer are men. Casimer 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 Casimer a male or female name?", https://dearwho.vercel.app/name/casimer (accessed 2026-09-11). Data: nam_dict (J. Michael, GFDL) and US SSA, built 2026-09-11.
BibTeX
@misc{dearwho_casimer,
title = {Is Casimer a male or female name?},
author = {{DearWho}},
year = {2026},
url = {https://dearwho.vercel.app/name/casimer},
note = {Data: nam_dict (GFDL), US SSA public domain}
}