Alastair

“Variant of Alexander — Defender of mankind” — Greek via Latin origin

Boy's name · #2147 in the US (2025) · Trending

Alastair is moving up the charts. First recorded in 1922, it stood at #2147 in 2025 — its strongest showing yet; about 1,400 boys have been named Alastair along the way.

Around the world: about 1 in 2,500 boys in Scotland (2025) · about 1 in 11,000 boys in England & Wales (2025) · about 1 in 14,000 boys in Canada (2024).

Appears in 2020-2025 birth records of 3 states. See the full state-by-state map on this page.

Famous Alastairs

Alastair Reynolds — British science fiction author (born 1966)
Alastair Cook — English cricketer (born 1984)
Alastair Windsor, 2nd Duke of Connaught and Strathearn — Member of the British Royal Family, British Army officer (1914-1943)
Alastair Sim — Scottish actor (1900–1976)
Alastair McCorquodale — British athlete (1925-2009)

In stories & tradition

Alastair — Supernatural
Alastair Campbel — TONY! The Blair Musical

What Alastairs become

Among 363 notable people named Alastair:

Lawyers & judges appear 1.45× more often than among typical names — e.g. Alastair Campbell, Lord Bracadale, British judge.

Similar names: Alexzander · Usher · Alistair · Rexton · Alastor · Lysander

Browse more boy names — popularity, trends and eras for 5,700+ American names, free.

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