Casyn vs Janson

Baby Name Comparison — 2026

Casyn

Boy #4,583 Most Popular 2 Syllables

"vigilant, watchful"

Origin: Irish Gaelic

American Irish English

✓ All Clear

Boy #4,740 Most Popular 2 Syllables

"son of Jan"

Origin: Scandinavian/Dutch

Scandinavian Dutch American

✓ All Clear

Casyn Rank #4,583

Janson Rank #4,740

Casyn is more popular, ranked #4583 vs #4740 for Janson.

Is Casyn or Janson more popular?

Casyn is more popular, ranked #4583 compared to Janson at #4740 in the United States.

What do Casyn and Janson mean?

Casyn means "vigilant, watchful" (Irish Gaelic origin). Janson means "son of Jan" (Scandinavian/Dutch origin).

Are Casyn and Janson boy or girl names?

Casyn is primarily a boy name. Janson is primarily a boy name.