Casyn vs Adrius

Baby Name Comparison — 2026

Casyn

Boy #4,583 Most Popular 2 Syllables

"vigilant, watchful"

Origin: Irish Gaelic

American Irish English

✓ All Clear

Boy #4,437 Most Popular 3 Syllables

"of the Adriatic, the dark sea"

Origin: Latin

American Latin Roman

✓ All Clear

Casyn Rank #4,583

Adrius Rank #4,437

Adrius is more popular, ranked #4437 vs #4583 for Casyn.

Is Casyn or Adrius more popular?

Adrius is more popular, ranked #4437 compared to Casyn at #4583 in the United States.

What do Casyn and Adrius mean?

Casyn means "vigilant, watchful" (Irish Gaelic origin). Adrius means "of the Adriatic, the dark sea" (Latin origin).

Are Casyn and Adrius boy or girl names?

Casyn is primarily a boy name. Adrius is primarily a boy name.