Meaning and history
From a Scottish surname derived from the Norman French town of Saint Clair, with a notable bearer being the American author Sinclair Lewis (1885–1951).
20062006: 15 births, rank #7,868
2007: 8 births, rank #12,676
2008: 11 births, rank #10,084
2009: 8 births, rank #12,429
2010: 5 births, rank #16,992
20112011: 14 births, rank #8,196
2012: 12 births, rank #9,109
2013: 10 births, rank #10,235
2014: 8 births, rank #11,931
2015: 17 births, rank #6,977
20162016: 9 births, rank #10,859
2017: 16 births, rank #7,092
2018: 17 births, rank #6,792
2019: 12 births, rank #8,597
2020: 9 births, rank #10,250
20212021: 18 births, rank #6,414
2022: 13 births, rank #8,032
2023: 22 births, rank #5,549
2024: 28 births, rank #4,772
20252025: 29 births, rank #4,661
In 2025, 29 babies were recorded with the name Sinclair, ranking #4,661 among girls.