Cleo

Cleo is a unisex given name: about 27% of people named Cleo are men and 73% are women, so a gendered salutation is a coin flip and the neutral form is the safe choice.

Mostly femaleHigh

Male 27%Female 73%

Cleo · Cléo

Verdict: Mostly female
Male / female split: 27% male / 73% female
Confidence: High (64 or more weighted country observations)
Most common in: United States, Belgium, France
Also spelled: Cléo
US births since 1880: 11,369 male / 30,459 female
Data: nam_dict (GFDL) + US SSA
Updated: 2026-09-11

How to address Cleo

To address Cleo when you do not know their gender, use the full name with no title: "Dear Cleo," in English, "Guten Tag Cleo," in German. About 27% of people named Cleo are men and 73% 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 Cleo,

German

Guten Tag Cleo,

French

Bonjour Cleo,

Spanish

Estimado/a Cleo:

Chinese

Cleo您好：

Japanese

Cleo様

English

Hi Cleo,

German

Hi Cleo,

French

Salut Cleo,

Spanish

Hola Cleo,

Chinese

Cleo你好：

Japanese

Cleo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 Cleo by country (nam_dict, 55 country columns)
Country	How common	Usually	Male share
United States	very common	woman's name	27%
Belgium	rare	woman's name	25%
France	rare	woman's name	25%
Great Britain	rare	woman's name	2%
Italy	rare	woman's name	2%
Netherlands	rare	woman's name	25%

United States birth data

11,369 male · 30,459 female · 41,828 births recorded

Male 27%Female 73%

Since 1980: 21% male.

Frequently asked questions

Is Cleo a male or female name?

Cleo is a unisex given name: about 27% of people named Cleo are men and 73% are women, so a gendered salutation is a coin flip and the neutral form is the safe choice.

How do I address Cleo in an email?

Is Cleo a unisex name?

Cleo is not a unisex name: 27% of people named Cleo are men. Cleo leans strongly female overall.

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

BibTeX

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