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Transferred use of the Scottish surname, in origin a Norman baronial name borne by a family that held a manor in northern France called Saint-Clair, probably Saint-Clair-sur-Elle in La Manche. It is an extremely common Scottish surname: the Norman family received the earldoms of Caithness and Orkney. They merged with the Norse- and Gaelic-speaking inhabitants of their domains to form one of the most powerful of the Scottish Highland families. The name of the novelist Sinclair Lewis (1885–1951) may have had some influence on recent use of this as a given name.
8,211th in the U.S.

Nicknames & variations

Quick facts

Hundreds
of people in the U.S have this name
1,645
to be exact
District of Columbia
has the most people named Sinclair per capita
1923
marked the height of its popularity
0%
100%
82%
55+
12%
30-54
6%
13-29
0%
0-12

Top state populations

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