Sinclair Name Meaning & Origin
/SIN-klair/Sinclair is most likely a name of Scottish origin.
This analysis is AI-assisted and may contain errors. It is not individually reviewed by an onomast. Check important details against reliable sources or a qualified researcher. Analysis generated on October 23, 2026.
Name Origin
The surname Sinclair originates from the Norman French 'Saint-Clair,' which was brought to Britain during the Norman Conquest. It is derived from the Latin 'Sanctus Clarus,' meaning 'Holy Light.' The name was originally a title for a family associated with a church or monastery dedicated to Saint Clare or Saint Clair. Over time, it became a hereditary surname and is now used as a given name as well.
Name Ethnicity & Nationality
These estimates show the cultural and national origins most closely associated with this name. They describe the name, not an individual's identity.
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Scottish (Celtic/Scottish) 74% -
French (Norman-French) 16% -
English (Anglo-Norman) 10%
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Name Details
- First Name: Sinclair
- Name Order: Western
- Gender: Unisex
Famous People Named Sinclair
Notable individuals include Sir Clive Sinclair, a British inventor and entrepreneur known for his work in electronics; Sinclair Lewis, an American novelist and Nobel laureate; and Sinclair Beiles, an Australian poet and writer.
Popularity Trend
In 2025, 29 girls in the US were named Sinclair.
Growth of the name Sinclair in the US (SSA Data):
Sinclair Numerology
Numerology is provided for entertainment only and is not scientific.
Soul Urge Number: 4
People with this name tend to be: Hard-working, practical and grounded.
Sources & Methodology
US popularity data comes from the Social Security Administration. Origin and ethnicity estimates are generated from name patterns and cultural distributions using AI-assisted analysis.
These results are estimates, not definitive genealogical findings. Learn more about our methodology.