Casyn vs Aiko

Baby Name Comparison — 2026

Casyn

Boy #4,583 Most Popular 2 Syllables

"vigilant, watchful"

Origin: Irish Gaelic

American Irish English

✓ All Clear

Boy #10,540 Most Popular 3 Syllables

"child of love"

Origin: Japanese

Japanese

✓ All Clear

Casyn Rank #4,583

Aiko Rank #10,540

Casyn is more popular, ranked #4583 vs #10540 for Aiko.

Is Casyn or Aiko more popular?

Casyn is more popular, ranked #4583 compared to Aiko at #10540 in the United States.

What do Casyn and Aiko mean?

Casyn means "vigilant, watchful" (Irish Gaelic origin). Aiko means "child of love" (Japanese origin).

Are Casyn and Aiko boy or girl names?

Casyn is primarily a boy name. Aiko is primarily a boy name.