Callister vs Willian

Baby Name Comparison — 2026

Callister

Boy #43,579 Most Popular 3 Syllables

"defender of men"

Origin: Greek via Gaelic

Scottish Manx Irish

✓ All Clear

Boy #5,797 Most Popular 3 Syllables

"resolute protector"

Origin: Germanic

Portuguese Brazilian Spanish

✓ All Clear

Callister Rank #43,579

Willian Rank #5,797

Willian is more popular, ranked #5797 vs #43579 for Callister.

Is Callister or Willian more popular?

Willian is more popular, ranked #5797 compared to Callister at #43579 in the United States.

What do Callister and Willian mean?

Callister means "defender of men" (Greek via Gaelic origin). Willian means "resolute protector" (Germanic origin).

Are Callister and Willian boy or girl names?

Callister is primarily a boy name. Willian is primarily a boy name.