Callister vs Sullivan

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 #340 Most Popular 3 Syllables

"descendant of the dark one"

Origin: Irish Gaelic

Irish American English

✓ All Clear

Callister Rank #43,579

Sullivan Rank #340

Sullivan is more popular, ranked #340 vs #43579 for Callister.

Is Callister or Sullivan more popular?

Sullivan is more popular, ranked #340 compared to Callister at #43579 in the United States.

What do Callister and Sullivan mean?

Callister means "defender of men" (Greek via Gaelic origin). Sullivan means "descendant of the dark one" (Irish Gaelic origin).

Are Callister and Sullivan boy or girl names?

Callister is primarily a boy name. Sullivan is primarily a boy name.