Arthur, William (1857) An Etymological Dictionary of Family and Christian Names. New York: Sheldon, Blakeman. Public Domain.
SINCLAIR
There are approximately 34,921 people named Sinclair in the UK. That makes it the 262nd most common surname overall. Out of every million people in the UK, approximately 553 are named Sinclair.
Region of origin
British Isles
Country of origin
Scotland
Language of origin
Gaelic
Religion of origin
Christian
Classification
Celtic
Related and similar surnames
SinclaireStclair
Cinclair
Cinclaire
Cinclare
Cynclair
Cincler
Cinckler
Cinclere
Cinkclear
Cinkler
Sincklaire
Sincklair
Sincclair
Siinclair
Scinclair
Sincklar
Sinccleir
Sincklare
Sincalair
Scynklair
Sincalir
The Sinclair surname in historical dictionaries
An Etymological Dictionary of Family and Christian Names (1857)
A corruption of St. Clair, and that from St. Clara, from the Latin clarus, pure, renowned, illustrious.
Patronymica Britannica (1860)
SINCLAIR. A corruption of Saint Clair or Saint Clere.
Lower, Mark A (1860) Patronymica Britannica: a dictionary of the family names of the United Kingdom. London: J.R. Smith. Public Domain.