Caison vs Ao

Baby Name Comparison — 2026

Caison

Boy #2,487 Most Popular 2 Syllables

"hollow, empty space"

Origin: French

American

✓ All Clear

Boy #14,516 Most Popular 2 Syllables

"blue, blue-green"

Origin: Japanese

Japanese Chinese Maori

✓ All Clear

Caison Rank #2,487

Ao Rank #14,516

Caison is more popular, ranked #2487 vs #14516 for Ao.

Is Caison or Ao more popular?

Caison is more popular, ranked #2487 compared to Ao at #14516 in the United States.

What do Caison and Ao mean?

Caison means "hollow, empty space" (French origin). Ao means "blue, blue-green" (Japanese origin).

Are Caison and Ao boy or girl names?

Caison is primarily a boy name. Ao is primarily a boy name.