Callister vs Lio

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 #2,871 Most Popular 2 Syllables

"lion"

Origin: Latin

Portuguese Spanish Italian French German

✓ All Clear

Callister Rank #43,579

Lio Rank #2,871

Lio is more popular, ranked #2871 vs #43579 for Callister.

Is Callister or Lio more popular?

Lio is more popular, ranked #2871 compared to Callister at #43579 in the United States.

What do Callister and Lio mean?

Callister means "defender of men" (Greek via Gaelic origin). Lio means "lion" (Latin origin).

Are Callister and Lio boy or girl names?

Callister is primarily a boy name. Lio is primarily a boy name.