9BabyNames Baby names with meanings & US popularity data

Alastair

Pronunciation
[A-las-tair]
Gender
Male
Meaning
Defender Of Man
Origin
Scottish

Alastair Popularity Snapshot

Across the entire US Social Security Administration record (1880–2024), 1,297 baby boys have been named Alastair. The name peaked in 2019 with 62 US births that year (rank #2231). In 2024, ranked #2364 nationally — 133 places below its 2019 peak.

Top States for Alastair

Based on 1910–2024 US SSA state-level records, the three states with the most Alastair births are: California (91), Texas (21), Colorado (5).

Other Scottish-Origin Names Like Alastair

If you like Alastair's Scottish origin, consider these related names: Abhainn, Abhainn, Aibne, Acair, Acaiseid, Achaius. Browse all Scottish names →

8-Letter Names Starting with A

Names with Alastair's exact length and starting letter: Aaleahya, Aarshiya, Abaigael, Abaigeal, Aballach.

Quick Facts About Alastair

520
Scottish baby names in our dictionary
373
Scottish male names
242
8-letter A-names in our dictionary
1,087
A-male names total
Not in registry
US SSA records — name appears fewer than 5 times in any year

Variant Forms

NameMeaningGenderOrigin
Al An Abbreviation Of Names Beginning With Al- Male English
Alistair Variant Of Alexander - Defender Of Mankind. Male Scottish

Looking for names like Alastair?

A dedicated page with 60+ related names — spelling variants, rhymes, alliterations, same-origin matches, and shared meaning concepts — lives at its own URL so each kind of similarity gets a deeper treatment than fits here.

See all names like Alastair →

Compare Alastair to Other Popular Names

Side-by-side popularity charts and crossover years for Alastair against today's most popular boys-name peers (top 8 by US births in the last 10 years of SSA records).

Compare to a different name →

Alastair Baby Name Ideas