Given name & surname · also Scottish

Sinclair

“man from Saint Clair”

Sinclair carries a Scottish surname history that begins with a Norman place name.

Meaning & origin

What it means

One English interpretation is “man from Saint Clair.”

Where it comes from

An origin associated with this spelling is Scottish.

The story

The Sinclair surname connects with a Norman family associated with Saint-Clair in northern France and later with the earldoms of Caithness and Orkney. The novelist Sinclair Lewis may have encouraged its twentieth-century use as a first name.

Sinclair through the years

Babies since 1880
1,912
1,435 boys · 477 girls
Most popular year
2025
43 babies
2025
43
#4,740 for girls · #6,400 for boys
2021–25 vs 2016–20
+45%
Rising
Boys Girls
02040601900192019401960198020002025Highest share 1900Boys 8.2Girls 18
Sinclair in U.S. Social Security birth records, 1900–2025, per million births of each sex. Years with fewer than five births for a sex are not published and appear as zero. Use the arrow keys to step through years.

Where it’s given

Most at home inGeorgia
FewerMore, relative to births Not published
2025 births by state of birth. Tiles are equal-sized so small states stay visible. Highest rates: Georgia (5).

By the numbers

In 2025, this name appeared in 29 U.S. birth records for girls, ranking No. 4,740 among girls’ names. Average annual use for girls was 74.6% higher in 2021–2025 than in 2016–2020. It also appeared in 14 birth records for boys in 2025. In 2025, Georgia had the largest reported state-level birth count for girls with this name (5). Published U.S. population figures for this spelling include 1,242 as a first name in 2020; 27,347 as a surname in 2020.

From Social Security birth records and U.S. Census name counts for this exact spelling. Other spellings are counted separately.

Sinclair’s family of names

Sinclair has a related form in Sinclaire. In English usage, Sinclair has a related form in Saint Clare. Sinclair has a related form in Sinclare.

Walk Sinclair’s family in the name graph

SinclairSinclaireSynclaireSynclairSynclareSinclareSaint ClareSt ClairSt. Clair

The ring: nicknames and forms.

Hover or tab through the constellation to see how each name is related. Bigger dots are names more people in the U.S. share.

People named Sinclair

Listed by how widely each person is written about, which says nothing about the name itself.

Similar names

If you love Sinclair, these share its style, era, origin or sound, from outside its own family.

English · Shared

Silver

“a precious metal; whiteskinned” · “a precious metal; a whiteskinned man”

35RareRising

27% boys · 73% girls

English · Shared

Southern

“woman of the South” · “man from the south”

21RareRising

39% boys · 61% girls

Gaelic · Shared

Tully

“of the mighty people”

28RareRising fast

46% boys · 54% girls

English · Shared

Hartford

“from the stag's ford”

27RareRising fast

50% boys · 50% girls

English · Shared

Winslow

“from a friend's hill”

49UncommonRising fast

29% boys · 71% girls

English · Modern

Sadler

“one who makes harnesses”

25RareRising fast

58% boys · 42% girls

American · Shared

Aris

“the best” · “one who is superior”

48UncommonRising

59% boys · 41% girls

English · Shared

Roe

“one who hunts deer”

23RareRising fast

46% boys · 54% girls

Sibling ideas

Names that share Sinclair’s feel without repeating its first letter or rhyming with it.

A brother for Sinclair

A sister for Sinclair