Marcus vs Declan

Baby Name Comparison — 2026

Marcus

Boy #256 Most Popular 2 Syllables

"of Mars, warlike"

Origin: Latin

Roman English German Scandinavian African-American

✓ All Clear

Boy #131 Most Popular 2 Syllables

"man of prayer"

Origin: Irish Gaelic

Irish English American

✓ All Clear

Marcus Rank #256

Declan Rank #131

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

Is Marcus or Declan more popular?

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

What do Marcus and Declan mean?

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

Are Marcus and Declan boy or girl names?

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