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Co

Co is a unisex given name: about 72% of people named Co are men and 28% are women, so a gendered salutation is a coin flip and the neutral form is the safe choice.

Mostly maleMedium
Male 72%Female 28%
Verdict
Mostly male
Male / female split
72% male / 28% female
Confidence
Medium (8 to 63 weighted country observations)
Most common in
Netherlands, Vietnam
Data
nam_dict (GFDL) + US SSA
Updated
2026-09-11

How to address Co

To address Co when you do not know their gender, use the full name with no title: "Dear Co," in English, "Guten Tag Co," in German. About 72% of people named Co are men and 28% are women, so a gendered salutation is close to a coin flip, and the neutral form above is the safer choice.

Ready-made greetings in six languages

English

Dear Co,

German

Guten Tag Co,

French

Bonjour Co,

Spanish

Estimado/a Co:

Chinese

Co您好：

Japanese

Co様

English

Hi Co,

German

Hi Co,

French

Salut Co,

Spanish

Hola Co,

Chinese

Co你好：

Japanese

Coさん

Greeting generator

This is a statistical estimate, not a statement about the gender, identity or correct form of address of any particular person.

Country breakdown

Gender of the name Co by country (nam_dict, 55 country columns)
CountryHow commonUsuallyMale share
Netherlandsuncommonman's name75%
Vietnamrareunisex name50%

Frequently asked questions

Is Co a male or female name?

Co is a unisex given name: about 72% of people named Co are men and 28% are women, so a gendered salutation is a coin flip and the neutral form is the safe choice.

How do I address Co in an email?

To address Co when you do not know their gender, use the full name with no title: "Dear Co," in English, "Guten Tag Co," in German. About 72% of people named Co are men and 28% are women, so a gendered salutation is close to a coin flip, and the neutral form above is the safer choice.

Is Co a unisex name?

Co is not a unisex name: 72% of people named Co are men. Co leans strongly male overall.

Related names

AstridFemaleTheoMaleHenkMaleRobMaleJolandaFemaleWimMaleJosMaleEllyFemale

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.

Cite this page

DearWho, "Is Co a male or female name?", https://dearwho.vercel.app/name/co (accessed 2026-09-11). Data: nam_dict (J. Michael, GFDL) and US SSA, built 2026-09-11.

BibTeX
@misc{dearwho_co,
  title  = {Is Co a male or female name?},
  author = {{DearWho}},
  year   = {2026},
  url    = {https://dearwho.vercel.app/name/co},
  note   = {Data: nam_dict (GFDL), US SSA public domain}
}