Jefferson

Jefferson is a male given name: 100% of people named Jefferson are men, and it is recorded as male in 1 of the 1 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
US births since 1880: 21,685 male / 0 female
Data: nam_dict (GFDL) + US SSA
Updated: 2026-09-11

How to address Jefferson

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

Ready-made greetings in six languages

English

Dear Jefferson,

German

Guten Tag Jefferson,

French

Bonjour Jefferson,

Spanish

Estimado/a Jefferson:

Chinese

Jefferson您好：

Japanese

Jefferson様

English

Hi Jefferson,

German

Hi Jefferson,

French

Salut Jefferson,

Spanish

Hola Jefferson,

Chinese

Jefferson你好：

Japanese

Jefferson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 Jefferson by country (nam_dict, 55 country columns)
Country	How common	Usually	Male share
United States	common	man's name	100%

United States birth data

21,685 male · 0 female · 21,685 births recorded

Male 100%Female 0%

Since 1980: 100% male.

Frequently asked questions

Is Jefferson a male or female name?

Jefferson is a male given name: 100% of people named Jefferson are men, and it is recorded as male in 1 of the 1 countries covered.

How do I address Jefferson in an email?

Is Jefferson a unisex name?

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

BibTeX

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