Callister vs Bill

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 #4,669 Most Popular 1 Syllable

"resolute protector"

Origin: Old High German Willahelm

English American Australian

✓ All Clear

Callister Rank #43,579

Bill Rank #4,669

Bill is more popular, ranked #4669 vs #43579 for Callister.

Is Callister or Bill more popular?

Bill is more popular, ranked #4669 compared to Callister at #43579 in the United States.

What do Callister and Bill mean?

Callister means "defender of men" (Greek via Gaelic origin). Bill means "resolute protector" (Old High German Willahelm origin).

Are Callister and Bill boy or girl names?

Callister is primarily a boy name. Bill is primarily a boy name.