Callister vs Willis

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 #2,686 Most Popular 2 Syllables

"resolute protector"

Origin: Germanic

English American African-American

✓ All Clear

Callister Rank #43,579

Willis Rank #2,686

Willis is more popular, ranked #2686 vs #43579 for Callister.

Is Callister or Willis more popular?

Willis is more popular, ranked #2686 compared to Callister at #43579 in the United States.

What do Callister and Willis mean?

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

Are Callister and Willis boy or girl names?

Callister is primarily a boy name. Willis is primarily a boy name.