Caisyn vs Kei

Baby Name Comparison — 2026

Caisyn

Boy #4,590 Most Popular 2 Syllables

"path, way (via Cason etymology)"

Origin: American/Modern

American

✓ All Clear

Boy #4,606 Most Popular 1 Syllable

"joy, jubilation"

Origin: Japanese kanji 慶

Japanese American Hawaiian

✓ All Clear

Caisyn Rank #4,590

Kei Rank #4,606

Caisyn is more popular, ranked #4590 vs #4606 for Kei.

Is Caisyn or Kei more popular?

Caisyn is more popular, ranked #4590 compared to Kei at #4606 in the United States.

What do Caisyn and Kei mean?

Caisyn means "path, way (via Cason etymology)" (American/Modern origin). Kei means "joy, jubilation" (Japanese kanji 慶 origin).

Are Caisyn and Kei boy or girl names?

Caisyn is primarily a boy name. Kei is primarily a boy name.