Alasdair comes from the Greek / Scottish tradition, meaning Defender of men, protector.
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How popular is Alasdair?
2021peak year
Today, Alasdair is rarely chosen — ranked well outside the top 1,000 (around #4136), with only about 26 babies given the name per year. But it wasn't always this way. At its peak in 2021, 37 babies were given the name (ranked #3178 nationally). Its strongest stretch was the 2010s. Alasdair's usage has held roughly steady recently. In all, around 497 babies have been registered as Alasdair since 1880.
Year-by-year registrations1880–2024 · U.S. Social Security data
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