DearWho
DE
DearWho

Sinclair

Sinclair is a unisex given name: about 82% of people named Sinclair are men and 18% are women, so a gendered salutation is a coin flip and the neutral form is the safe choice.

Mostly maleMedium
Male 82%Female 18%
Verdict
Mostly male
Male / female split
82% male / 18% female
Confidence
Medium (8 to 63 weighted country observations)
Most common in
United States, Great Britain
US births since 1880
1,364 male / 329 female
Data
nam_dict (GFDL) + US SSA
Updated
2026-09-11

How to address Sinclair

To address Sinclair when you do not know their gender, use the full name with no title: "Dear Sinclair," in English, "Guten Tag Sinclair," in German. About 82% of people named Sinclair are men and 18% 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 Sinclair,

German

Guten Tag Sinclair,

French

Bonjour Sinclair,

Spanish

Estimado/a Sinclair:

Chinese

Sinclair您好：

Japanese

Sinclair様

English

Hi Sinclair,

German

Hi Sinclair,

French

Salut Sinclair,

Spanish

Hola Sinclair,

Chinese

Sinclair你好：

Japanese

Sinclair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 Sinclair by country (nam_dict, 55 country columns)
CountryHow commonUsuallyMale share
United Statesuncommonman's name81%
Great Britainrareman's name98%

United States birth data

1,364 male · 329 female · 1,693 births recorded

Male 81%Female 19%

Since 1980: 53% male.

Frequently asked questions

Is Sinclair a male or female name?

Sinclair is a unisex given name: about 82% of people named Sinclair are men and 18% are women, so a gendered salutation is a coin flip and the neutral form is the safe choice.

How do I address Sinclair in an email?

To address Sinclair when you do not know their gender, use the full name with no title: "Dear Sinclair," in English, "Guten Tag Sinclair," in German. About 82% of people named Sinclair are men and 18% are women, so a gendered salutation is close to a coin flip, and the neutral form above is the safer choice.

Is Sinclair a unisex name?

Sinclair is not a unisex name: 82% of people named Sinclair are men. Sinclair leans strongly male overall.

Related names

MariaFemaleAnnaFemaleMarieFemalePeterMaleJeanDepends on the countryAlexanderMaleDavidMaleJoseMale

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

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