Declan vs Marcus

Baby Name Comparison — 2026

Declan

Boy #131 Most Popular 2 Syllables

"man of prayer"

Origin: Irish Gaelic

Irish English American

✓ All Clear

Boy #256 Most Popular 2 Syllables

"of Mars, warlike"

Origin: Latin

Roman English German Scandinavian African-American

✓ All Clear

Declan Rank #131

Marcus Rank #256

Declan is more popular, ranked #131 vs #256 for Marcus.

Is Declan or Marcus more popular?

Declan is more popular, ranked #131 compared to Marcus at #256 in the United States.

What do Declan and Marcus mean?

Declan means "man of prayer" (Irish Gaelic origin). Marcus means "of Mars, warlike" (Latin origin).

Are Declan and Marcus boy or girl names?

Declan is primarily a boy name. Marcus is primarily a boy name.