Recorded 1989–2025 · United States
Alasdair was most popular in 2021, when 37 American babies were given the name — ranking #6,837 that year. In 2025 it ranked #8,252, with 28 births. Across 1880–2025 the Social Security Administration has recorded 525 people named Alasdair.
Across the whole record Alasdair is a boy’s name — 0.0% of the 525 Americans given it were girls and 100.0% were boys. In births since 2016 it is 0% girls and 100% 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.
See Alasdair on the interactive charts
Source: U.S.A. Social Security Administration. Years 1880–2025. namelegacy.org