Mark vs Declan

Baby Name Comparison — 2026

Mark

Boy #246 Most Popular 1 Syllable

"of Mars, warlike"

Origin: Latin

English German Dutch Scandinavian Russian

✓ All Clear

Boy #131 Most Popular 2 Syllables

"man of prayer"

Origin: Irish Gaelic

Irish English American

✓ All Clear

Mark Rank #246

Declan Rank #131

Declan is more popular, ranked #131 vs #246 for Mark.

Is Mark or Declan more popular?

Declan is more popular, ranked #131 compared to Mark at #246 in the United States.

What do Mark and Declan mean?

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

Are Mark and Declan boy or girl names?

Mark is primarily a boy name. Declan is primarily a boy name.