Alastair comes from the Greek / Scottish tradition, meaning Defender of men, protector.
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How popular is Alastair?
2019peak year
Alastair first appears in the U.S. registration record in 1922. Its popularity climbed over the following decades. In 2019, 62 babies received the name (ranked #2231). Today it sits well outside the top 1,000 (around #2479), with roughly 54 babies named Alastair each year. Alastair's usage has held roughly steady recently. In total, around 1,297 babies have been registered with this name since 1880.
Year-by-year registrations1880–2024 · U.S. Social Security data
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