Alastair
Meaning
"defender of men"
Origin: Greek via Scottish Gaelic
Cultural Roots
Quick Stats
- Popularity Rank
- #2,390
- Total SSA Count
- 59
- Syllables
- 3
- Formality
- Formal
- Nicknames
- Al, Ali, Allie
Baby Name Comparison — 2026
"defender of men"
Origin: Greek via Scottish Gaelic
"sacred serpent, water snake"
Origin: Quechua
Amaru is more popular, ranked #2381 vs #2390 for Alastair.
Historical US popularity rank — lower number means more popular.
Historical trend data not available for this comparison.
Names that pair well as siblings.
Answer 3 quick questions and we'll help you decide.
1. Which style feels more like your family?
Amaru is more popular, ranked #2381 compared to Alastair at #2390 in the United States.
Alastair means "defender of men" (Greek via Scottish Gaelic origin). Amaru means "sacred serpent, water snake" (Quechua origin).
Alastair is primarily a boy name. Amaru is primarily a boy name.