Douglas vs Rex

Baby Name Comparison — 2026

Douglas

Boy #855 Most Popular 2 Syllables

"dark blue water"

Origin: Scottish Gaelic

Scottish English American Canadian

✓ All Clear

Boy #793 Most Popular 1 Syllable

"king"

Origin: Latin

English Latin American

✓ All Clear

Douglas Rank #855

Rex Rank #793

Rex is more popular, ranked #793 vs #855 for Douglas.

Is Douglas or Rex more popular?

Rex is more popular, ranked #793 compared to Douglas at #855 in the United States.

What do Douglas and Rex mean?

Douglas means "dark blue water" (Scottish Gaelic origin). Rex means "king" (Latin origin).

Are Douglas and Rex boy or girl names?

Douglas is primarily a boy name. Rex is primarily a boy name.