Merle vs Casyn

Baby Name Comparison — 2026

Merle

Boy #4,664 Most Popular 1 Syllable

"blackbird"

Origin: Old French from Latin merula

French English American

✓ All Clear

Boy #4,583 Most Popular 2 Syllables

"vigilant, watchful"

Origin: Irish Gaelic

American Irish English

✓ All Clear

Merle Rank #4,664

Casyn Rank #4,583

Casyn is more popular, ranked #4583 vs #4664 for Merle.

Is Merle or Casyn more popular?

Casyn is more popular, ranked #4583 compared to Merle at #4664 in the United States.

What do Merle and Casyn mean?

Merle means "blackbird" (Old French from Latin merula origin). Casyn means "vigilant, watchful" (Irish Gaelic origin).

Are Merle and Casyn boy or girl names?

Merle is primarily a boy name. Casyn is primarily a boy name.