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The first name Sinclair

A unisex name.

Pronounced /sɪŋˈklɛəɹ/ 2 syllables Unisex Also a surname

Meaning and origin

Derived from Saint Clare, to whom the clan's churches were dedicated.

From Wiktionary (CC BY-SA 4.0).

Popularity

Babies registered in England and Wales, 1996–2025

Sinclair last appeared in the official list in 2012, given to 3 boys. It peaked in 2001, with 4 births (#2,587).

0510 1996200020052010201520202025
13
babies named Sinclair, 1996–2025
#4,805
rank in 2012
2001
peak year

Office for National Statistics; years with fewer than three births are not published and show as zero. Compare Sinclair with other names.

Popularity in the United States

Babies named Sinclair at birth, 1880–2025

In 2025, 29 girls born in the United States were named Sinclair, the 4,740th most popular girls’ name that year. It was used most in 1924, when 29 were.

01530 188018851890189519001905191019151920192519301935194019451950195519601965197019751980198519901995200020052010201520202025
GirlsBoys
1,912
babies named Sinclair since 1880
#4,740
rank in 2025
1924
peak year

US Social Security Administration, from applications for a Social Security card. A name is only published for a year when at least five babies were given it, so quieter years show as zero.

Nicknames and spellings

Other spellings and forms

  • Sinclaire
  • Sinclare
  • Sinclar

Famous people named Sinclair

5 on Wikidata, most written-about first

  • Sinclair Lewis
    American writer and playwright (1885–1951)
  • Sinclair Weeks
    American politician (1893-1972)
  • Don S. Davis
    American character actor (1942–2008)
  • Marc Almond
    British singer, born 1957
  • Alan Paterson
    British high jumper (1928–1999)

Questions

What does the name Sinclair mean?
Derived from Saint Clare, to whom the clan's churches were dedicated.
How popular is the name Sinclair?
In 2012, 3 boys born in England and Wales were named Sinclair, ranking 4,805th. Its peak was 2001, with 4 births.
Is Sinclair a boy's or a girl's name?
Both. Of the 1,912 US babies named Sinclair since 1880, 25% were girls and 75% boys.
When was Sinclair most popular?
1924 in the United States, when 29 babies were named Sinclair, its highest rank at 1,409th.
How do you pronounce Sinclair?
Sinclair is /sɪŋˈklɛəɹ/, 2 syllables.
What are other spellings of Sinclair?
Sinclaire, Sinclare and Sinclar.
Is Sinclair also a surname?
Yes. Sinclair is used as a surname as well as a first name; its surname page has the origin and how many people carry it.