Riley vs Killian

Baby Name Comparison — 2026

Riley

Boy #229 Most Popular 2 Syllables

"courageous, valiant"

Origin: Irish

Irish English American

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Boy #370 Most Popular 3 Syllables

"associated with the church"

Origin: Irish Gaelic

Irish French American English

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Riley Rank #229

Killian Rank #370

Riley is more popular, ranked #229 vs #370 for Killian.

Is Riley or Killian more popular?

Riley is more popular, ranked #229 compared to Killian at #370 in the United States.

What do Riley and Killian mean?

Riley means "courageous, valiant" (Irish origin). Killian means "associated with the church" (Irish Gaelic origin).

Are Riley and Killian boy or girl names?

Riley is primarily a boy name. Killian is primarily a boy name.