Harold vs Callister

Baby Name Comparison — 2026

Harold

Boy #991 Most Popular 2 Syllables

"army ruler, power of the army"

Origin: Old English

English Scandinavian American

✓ All Clear

Boy #43,579 Most Popular 3 Syllables

"defender of men"

Origin: Greek via Gaelic

Scottish Manx Irish

✓ All Clear

Harold Rank #991

Callister Rank #43,579

Harold is more popular, ranked #991 vs #43579 for Callister.

Is Harold or Callister more popular?

Harold is more popular, ranked #991 compared to Callister at #43579 in the United States.

What do Harold and Callister mean?

Harold means "army ruler, power of the army" (Old English origin). Callister means "defender of men" (Greek via Gaelic origin).

Are Harold and Callister boy or girl names?

Harold is primarily a boy name. Callister is primarily a boy name.