Jack vs Callister

Baby Name Comparison — 2026

Jack

Boy #15 Most Popular 1 Syllable

"supplanter"

Origin: Hebrew

English Irish American Australian

✓ All Clear

Boy #43,579 Most Popular 3 Syllables

"defender of men"

Origin: Greek via Gaelic

Scottish Manx Irish

✓ All Clear

Jack Rank #15

Callister Rank #43,579

Jack is more popular, ranked #15 vs #43579 for Callister.

Is Jack or Callister more popular?

Jack is more popular, ranked #15 compared to Callister at #43579 in the United States.

What do Jack and Callister mean?

Jack means "supplanter" (Hebrew origin). Callister means "defender of men" (Greek via Gaelic origin).

Are Jack and Callister boy or girl names?

Jack is primarily a boy name. Callister is primarily a boy name.