Alastair

Boy name

Alastair has been given to 1,364 babies in the U.S. since 1922. It peaked in 2025. In 2025, about 1 in 25,494 boys was named Alastair.

Popularity over time births per year, 1880–2025

Hover or tap the chart to read any year.

Total babies

1,364

Peak year

2025 (67 babies)

Rank in 2025

Below top 1000

First recorded

1922

10-year trend

▲ +43%

Gender split

All boys

Names one letter away from Alastair — alternate spellings parents actually use.

4,088 babies since 1956

Same primary gender, peaked around the same years, and roughly as common as Alastair.

1,364 babies since 1991

1,366 babies since 1917

1,367 babies since 1961

1,369 babies since 1988

1,359 babies since 1880

1,359 babies since 1948

1,372 babies since 1996

1,353 babies since 1996

How popular is the name Alastair?

Alastair has been given to 1,364 babies in the U.S. since 1922. It ranked below the top 1000 in 2025.

When did the name Alastair peak?

Alastair peaked in 2025, when 67 babies were given the name.

Is Alastair a girl or boy name?

Alastair is primarily a boy name (100% of babies named Alastair are boys).

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