Marvin vs Rex

Baby Name Comparison — 2026

Marvin

Boy #672 Most Popular 2 Syllables

"sea fortress, sea friend"

Origin: Old Welsh Mervyn

English American Welsh

✓ All Clear

Boy #793 Most Popular 1 Syllable

"king"

Origin: Latin

English Latin American

✓ All Clear

Marvin Rank #672

Rex Rank #793

Marvin is more popular, ranked #672 vs #793 for Rex.

Is Marvin or Rex more popular?

Marvin is more popular, ranked #672 compared to Rex at #793 in the United States.

What do Marvin and Rex mean?

Marvin means "sea fortress, sea friend" (Old Welsh Mervyn origin). Rex means "king" (Latin origin).

Are Marvin and Rex boy or girl names?

Marvin is primarily a boy name. Rex is primarily a boy name.