Brett vs Marcellus

Baby Name Comparison — 2026

Brett

Boy #1,061 Most Popular 1 Syllable

"a Breton, person from Brittany"

Origin: Celtic/Old French

English American Australian

✓ All Clear

Boy #951 Most Popular 3 Syllables

"little warrior, young Mars"

Origin: Latin

English French Italian Roman German

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Brett Rank #1,061

Marcellus Rank #951

Marcellus is more popular, ranked #951 vs #1061 for Brett.

Is Brett or Marcellus more popular?

Marcellus is more popular, ranked #951 compared to Brett at #1061 in the United States.

What do Brett and Marcellus mean?

Brett means "a Breton, person from Brittany" (Celtic/Old French origin). Marcellus means "little warrior, young Mars" (Latin origin).

Are Brett and Marcellus boy or girl names?

Brett is primarily a boy name. Marcellus is primarily a boy name.