Aaron vs Declan

Baby Name Comparison — 2026

Aaron

Boy #79 Most Popular 2 Syllables

"high mountain"

Origin: Hebrew (aharon)

English Hebrew Arabic American

✓ All Clear

Boy #131 Most Popular 2 Syllables

"man of prayer"

Origin: Irish Gaelic

Irish English American

✓ All Clear

Aaron Rank #79

Declan Rank #131

Aaron is more popular, ranked #79 vs #131 for Declan.

Is Aaron or Declan more popular?

Aaron is more popular, ranked #79 compared to Declan at #131 in the United States.

What do Aaron and Declan mean?

Aaron means "high mountain" (Hebrew (aharon) origin). Declan means "man of prayer" (Irish Gaelic origin).

Are Aaron and Declan boy or girl names?

Aaron is primarily a boy name. Declan is primarily a boy name.