Aiko vs Rex

Baby Name Comparison — 2026

Aiko

Boy #10,540 Most Popular 3 Syllables

"child of love"

Origin: Japanese

Japanese

✓ All Clear

Boy #793 Most Popular 1 Syllable

"king"

Origin: Latin

English Latin American

✓ All Clear

Aiko Rank #10,540

Rex Rank #793

Rex is more popular, ranked #793 vs #10540 for Aiko.

Is Aiko or Rex more popular?

Rex is more popular, ranked #793 compared to Aiko at #10540 in the United States.

What do Aiko and Rex mean?

Aiko means "child of love" (Japanese origin). Rex means "king" (Latin origin).

Are Aiko and Rex boy or girl names?

Aiko is primarily a boy name. Rex is primarily a boy name.