Cillian vs Aidan

Baby Name Comparison — 2026

Cillian

Boy #464 Most Popular 3 Syllables

"strife, war"

Origin: Old Irish

Irish Celtic

✓ All Clear

Boy #312 Most Popular 2 Syllables

Irish Scottish English American

✓ All Clear

Cillian Rank #464

Aidan Rank #312

Aidan is more popular, ranked #312 vs #464 for Cillian.

Is Cillian or Aidan more popular?

Aidan is more popular, ranked #312 compared to Cillian at #464 in the United States.

What do Cillian and Aidan mean?

Cillian means "strife, war" (Old Irish origin).

Are Cillian and Aidan boy or girl names?

Cillian is primarily a boy name. Aidan is primarily a boy name.