Alaster
Meaningdefender of men · Scottish form of Alasdair
- US rank
- #6,446
- Syllables
- 3
- Peak
- #5,659 in 2024
13 babies were named Alaster in the US in 2025. It has climbed 4,159 places in five years.
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US births per million boys, 1998–2025
Similar names
Popularity: U.S. Social Security Administration (babies with 5+ births per year).
Did you know?
A few things about Alaster you might not know, from US birth records. Handy for convincing a partner, or a grandparent.
- How commonAbout 1 in every 131,579 baby boys born in the US in 2025 was named Alaster, 13 babies in all. In a typical school of 500 kids, your Alaster would very likely be the only one.
- HistoryAlaster first shows up in US birth records in 1998, the first year at least 5 babies got it. It has been in use for 27 years since.
- Best yearIts best year was 2024, when it reached #5,659.
- TrendAlaster has climbed 4,159 places in the US rankings over the last five years and now sits at #6,446. Fast risers like this often keep climbing, so expect to hear it more.
- MeaningAlaster is a Scottish form of Alasdair, which means “defender of men”.
About the name Alaster
Alaster is a boy name of Scottish origin meaning “defender of men”. It has 7 letters and 3 syllables, starting with A and ending in “-ter”. US birth records list Alaster for boys from 1998 to 2025, in 18 of those 28 years. Its best year was 2024, when it ranked #5,659 among boy names. In 2025 it ranked #6,446, with 13 babies.
Origin:Scottish names
| Decade | Babies per million | About 1 in |
|---|---|---|
| 1990s | 1.3 | 769,231 boys |
| 2000s | 1.1 | 925,926 boys |
| 2010s | 2.6 | 381,679 boys |
| 2020s | 6.0 | 166,667 boys |
More Scottish boy names
- Boy name: Andrew · manly
- Unisex name: Cameron · crooked nose
- Boy name: Ian · God is gracious
- Boy name: Arthur · possibly bear
- Unisex name: Kai · sea
- Boy name: Archer · bowman
- Boy name: Callum · dove
- Boy name: Graham · gravelly homestead
Questions about the name Alaster
What does the name Alaster mean?
Alaster means “defender of men” in Scottish, as a form of Alasdair.
What is the origin of the name Alaster?
Alaster has Scottish roots in our records. Other Scottish names include Andrew, Cameron, Ian.
Is Alaster a boy or girl name?
Alaster is a boy name.
How popular is the name Alaster?
Alaster ranked #6,446 for US boys in 2025, given to 13 babies. Its best year was 2024 (#5,659).