Recorded 1900–2025 · United States
Sinclair was most popular in 2025, when 43 American babies were given the name — ranking #6,196 that year. In 2025 it ranked #6,196, with 43 births. Across 1880–2025 the Social Security Administration has recorded 1,912 people named Sinclair.
Across the whole record Sinclair is a unisex name — 24.9% of the 1,912 Americans given it were girls and 75.0% were boys. It changed hands: since 1994 it has gone mainly to girls, having gone mainly to boys before that. In births since 2016 it is 65% girls and 35% boys.
Counted from every US birth the Social Security Administration recorded under this name, so it reflects use rather than opinion. A name given to fewer than five babies of one sex in a year is withheld at source and is not counted.
How much more common the name is in each state than across the country as a whole.
See Sinclair on the interactive charts
Source: U.S.A. Social Security Administration. Years 1880–2025. namelegacy.org