Reilly vs Dillan

Baby Name Comparison — 2026

Reilly

Boy #2,800 Most Popular 2 Syllables

"courageous, valiant"

Origin: Irish Gaelic

Irish Irish-American Scottish Australian

✓ All Clear

Boy #2,887 Most Popular 2 Syllables

"great tide, sea flow"

Origin: Welsh

Welsh English Irish American

✓ All Clear

Reilly Rank #2,800

Dillan Rank #2,887

Reilly is more popular, ranked #2800 vs #2887 for Dillan.

Is Reilly or Dillan more popular?

Reilly is more popular, ranked #2800 compared to Dillan at #2887 in the United States.

What do Reilly and Dillan mean?

Reilly means "courageous, valiant" (Irish Gaelic origin). Dillan means "great tide, sea flow" (Welsh origin).

Are Reilly and Dillan boy or girl names?

Reilly is primarily a boy name. Dillan is primarily a boy name.