Jeff

Jeff is a male given name: 100% of people named Jeff are men, and it is recorded as male in 3 of the 3 countries covered.

MaleHigh

Male 100%Female 0%

Verdict: Male
Male / female split: 100% male / 0% female
Confidence: High (64 or more weighted country observations)
Most common in: United States, Luxembourg, Great Britain
US births since 1880: 119,886 male / 258 female
Data: nam_dict (GFDL) + US SSA
Updated: 2026-09-11

How to address Jeff

When you do not know their gender for certain, the full name with no title is the safe choice: "Dear Jeff," in English, "Guten Tag Jeff," in German. Jeff is a male given name: about 100% of people named Jeff are men. A quick look at a profile confirms it for certain.

Ready-made greetings in six languages

English

Dear Jeff,

German

Guten Tag Jeff,

French

Bonjour Jeff,

Spanish

Estimado/a Jeff:

Chinese

Jeff您好：

Japanese

Jeff様

English

Hi Jeff,

German

Hi Jeff,

French

Salut Jeff,

Spanish

Hola Jeff,

Chinese

Jeff你好：

Japanese

Jeff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 Jeff by country (nam_dict, 55 country columns)
Country	How common	Usually	Male share
United States	very common	man's name	100%
Luxembourg	uncommon	man's name	98%
Great Britain	rare	man's name	98%

United States birth data

119,886 male · 258 female · 120,144 births recorded

Male 100%Female 0%

Since 1980: 100% male.

Frequently asked questions

Is Jeff a male or female name?

Jeff is a male given name: 100% of people named Jeff are men, and it is recorded as male in 3 of the 3 countries covered.

How do I address Jeff in an email?

Is Jeff a unisex name?

Jeff is not a unisex name: 100% of people named Jeff are men. Jeff leans strongly male 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 Jeff a male or female name?", https://dearwho.vercel.app/name/jeff (accessed 2026-09-11). Data: nam_dict (J. Michael, GFDL) and US SSA, built 2026-09-11.

BibTeX

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