Rex vs Douglas

Baby Name Comparison — 2026

Rex

Boy #793 Most Popular 1 Syllable

"king"

Origin: Latin

English Latin American

✓ All Clear

Boy #855 Most Popular 2 Syllables

"dark blue water"

Origin: Scottish Gaelic

Scottish English American Canadian

✓ All Clear

Rex Rank #793

Douglas Rank #855

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

Is Rex or Douglas more popular?

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

What do Rex and Douglas mean?

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

Are Rex and Douglas boy or girl names?

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