Rex vs Aspen

Baby Name Comparison — 2026

Rex

Boy #793 Most Popular 1 Syllable

"king"

Origin: Latin

English Latin American

✓ All Clear

Boy #963 Most Popular 2 Syllables

"aspen tree, quaking poplar"

Origin: Old English

American English Canadian

✓ All Clear

Rex Rank #793

Aspen Rank #963

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

Is Rex or Aspen more popular?

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

What do Rex and Aspen mean?

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

Are Rex and Aspen boy or girl names?

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