Alaster vs Callister

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

Iden Lynn Thaddaeus Taelyn

Full profile for Alaster →

Callister

Boy #43,579 Most Popular 3 Syllables

Meaning

"defender of men"

Origin: Greek via Gaelic

Cultural Roots

Scottish Manx Irish

Quick Stats

Popularity Rank: #43,579
Total SSA Count: 5
Syllables: 3
Formality: Moderate

Playground Safety Score

✓ All Clear

Full profile for Callister →

Popularity Comparison

Alaster Rank #5,903

Callister Rank #43,579

Alaster is more popular, ranked #5903 vs #43579 for Callister.

Frequently Asked Questions

Is Alaster or Callister more popular?

Alaster is more popular, ranked #5903 compared to Callister at #43579 in the United States.

What do Alaster and Callister mean?

Alaster means "defender of men, protector of mankind" (Greek via Scottish Gaelic origin). Callister means "defender of men" (Greek via Gaelic origin).

Are Alaster and Callister boy or girl names?

Alaster is primarily a boy name. Callister is primarily a boy name.

More Comparisons

Callister vs Alaster Alaster vs Iden Alaster vs Lynn Alaster vs Thaddaeus Alaster vs Taelyn

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