Cillian vs Brian

Baby Name Comparison — 2026

Cillian

Boy #464 Most Popular 3 Syllables

"strife, war"

Origin: Old Irish

Irish Celtic

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Boy #301 Most Popular 2 Syllables

"noble, high"

Origin: Celtic

Irish English American Scottish

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Cillian Rank #464

Brian Rank #301

Brian is more popular, ranked #301 vs #464 for Cillian.

Is Cillian or Brian more popular?

Brian is more popular, ranked #301 compared to Cillian at #464 in the United States.

What do Cillian and Brian mean?

Cillian means "strife, war" (Old Irish origin). Brian means "noble, high" (Celtic origin).

Are Cillian and Brian boy or girl names?

Cillian is primarily a boy name. Brian is primarily a boy name.