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Sinclair

Sinclair is classified as a mostly male given name in our dataset. A first name alone does not establish someone’s gender or preferred form of address.

Mostly maleMedium

Confidence describes the weight of the source data, not a measured accuracy rate.

Verdict
Mostly male
Confidence
Medium (source weight 8 to 63; not an accuracy rate)
High source frequency in
United States, Great Britain
US records 1880–2017
1,364 male / 329 female
Data
nam_dict (GFDL) + US SSA
Dataset built
2026-09-11

How to address Sinclair

If you do not know Sinclair’s preferred form of address, use a greeting without Mr or Ms: “Dear Sinclair,” in English, “Guten Tag Sinclair,” in German. Include their family name if you know it. The name’s classification describes its usage. Follow the form of address the person uses for themselves.

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

Classification of Sinclair by country (nam_dict and US SSA; not a survey of today’s population)
CountryHow commonUsually
United Statesuncommonman's name
Great Britainrareman's name

United States birth data

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

Male ≈ 80.6%Female ≈ 19.4%

Records from 1980–2017: 52.9% male.

Frequently asked questions

Is Sinclair a male or female name?

Sinclair is classified as a mostly male given name in our dataset. A first name alone does not establish someone’s gender or preferred form of address.

How do I address Sinclair in an email?

If you do not know Sinclair’s preferred form of address, use a greeting without Mr or Ms: “Dear Sinclair,” in English, “Guten Tag Sinclair,” in German. Include their family name if you know it. The name’s classification describes its usage. Follow the form of address the person uses for themselves.

Is Sinclair a unisex name?

Sinclair is classified as generally male in the combined dataset. This does not rule out other uses. Our categories describe the sources, rather than a complete survey of everyone with this name.

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 (1880–2017), public domain. Classifications are not measured accuracy rates. Method: how we classify names. Full dataset: data & licences. US source data (babynames). Dataset built 2026-09-11; this is not a new collection date for the source records.

Cite this page

DearWho, "Is Sinclair a male or female name?", https://www.dearwho.app/name/sinclair. 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://www.dearwho.app/name/sinclair},
  note   = {Data: nam_dict (GFDL), US SSA public domain}
}