Koi vs Caison

Baby Name Comparison — 2026

Koi

Boy #2,684 Most Popular 1 Syllable

"love, romantic feeling"

Origin: Japanese

Japanese American Hawaiian

✓ All Clear

Boy #2,487 Most Popular 2 Syllables

"hollow, empty space"

Origin: French

American

✓ All Clear

Koi Rank #2,684

Caison Rank #2,487

Caison is more popular, ranked #2487 vs #2684 for Koi.

Is Koi or Caison more popular?

Caison is more popular, ranked #2487 compared to Koi at #2684 in the United States.

What do Koi and Caison mean?

Koi means "love, romantic feeling" (Japanese origin). Caison means "hollow, empty space" (French origin).

Are Koi and Caison boy or girl names?

Koi is primarily a boy name. Caison is primarily a boy name.