Cullen vs Caius

Baby Name Comparison — 2026

Cullen

Boy #1,131 Most Popular 2 Syllables

"at the holly trees"

Origin: Irish Gaelic

Irish Scottish American

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Boy #1,063 Most Popular 2 Syllables

"to rejoice, joyful"

Origin: Latin

Roman British European American

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Cullen Rank #1,131

Caius Rank #1,063

Caius is more popular, ranked #1063 vs #1131 for Cullen.

Is Cullen or Caius more popular?

Caius is more popular, ranked #1063 compared to Cullen at #1131 in the United States.

What do Cullen and Caius mean?

Cullen means "at the holly trees" (Irish Gaelic origin). Caius means "to rejoice, joyful" (Latin origin).

Are Cullen and Caius boy or girl names?

Cullen is primarily a boy name. Caius is primarily a boy name.