Aspen vs Rex

Baby Name Comparison — 2026

Aspen

Boy #963 Most Popular 2 Syllables

"aspen tree, quaking poplar"

Origin: Old English

American English Canadian

✓ All Clear

Boy #793 Most Popular 1 Syllable

"king"

Origin: Latin

English Latin American

✓ All Clear

Aspen Rank #963

Rex Rank #793

Rex is more popular, ranked #793 vs #963 for Aspen.

Is Aspen or Rex more popular?

Rex is more popular, ranked #793 compared to Aspen at #963 in the United States.

What do Aspen and Rex mean?

Aspen means "aspen tree, quaking poplar" (Old English origin). Rex means "king" (Latin origin).

Are Aspen and Rex boy or girl names?

Aspen is primarily a boy name. Rex is primarily a boy name.