Alaster vs Killiam

Baby Name Comparison — 2026

Alaster

Boy #5,903 Most Popular 3 Syllables

Meaning

"defender of men, protector of mankind"

Origin: Greek via Scottish Gaelic

Cultural Roots

Scottish Irish English Celtic

Quick Stats

Popularity Rank: #5,903
Total SSA Count: 16
Syllables: 3
Formality: Formal

Playground Safety Score

✓ All Clear

Similar Names

Trillion Bryon Jasen Broden

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Killiam

Boy #5,792 Most Popular 3 Syllables

Meaning

"little churchman, associated with the church"

Origin: Old Irish ceall + diminutive

Cultural Roots

Irish American

Quick Stats

Popularity Rank: #5,792
Total SSA Count: 16
Syllables: 3
Formality: Moderate

Playground Safety Score

✓ All Clear

Similar Names

Taevon Kaston Davidson Iden

Full profile for Killiam →

Popularity Comparison

Alaster Rank #5,903

Killiam Rank #5,792

Killiam is more popular, ranked #5792 vs #5903 for Alaster.

Frequently Asked Questions

Is Alaster or Killiam more popular?

Killiam is more popular, ranked #5792 compared to Alaster at #5903 in the United States.

What do Alaster and Killiam mean?

Alaster means "defender of men, protector of mankind" (Greek via Scottish Gaelic origin). Killiam means "little churchman, associated with the church" (Old Irish ceall + diminutive origin).

Are Alaster and Killiam boy or girl names?

Alaster is primarily a boy name. Killiam is primarily a boy name.

More Comparisons

Killiam vs Alaster Alaster vs Trillion Alaster vs Bryon Alaster vs Jasen Alaster vs Broden

← Full profile: Alaster ← Full profile: Killiam Browse all baby names