Callister vs Killiam

Baby Name Comparison — 2026

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 →

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
Full profile for Killiam →

Popularity Comparison

Callister Rank #43,579
Killiam Rank #5,792

Killiam is more popular, ranked #5792 vs #43579 for Callister.

Frequently Asked Questions

Is Callister or Killiam more popular?

Killiam is more popular, ranked #5792 compared to Callister at #43579 in the United States.

What do Callister and Killiam mean?

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

Are Callister and Killiam boy or girl names?

Callister is primarily a boy name. Killiam is primarily a boy name.

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