Cosmo vs Arlen

Baby Name Comparison — 2026

Cosmo

Boy #1,691 Most Popular 2 Syllables

"order, universe"

Origin: Greek

Italian Greek English American

✓ All Clear

Boy #1,688 Most Popular 2 Syllables

"pledge, oath"

Origin: Irish Gaelic

Irish American

✓ All Clear

Cosmo Rank #1,691

Arlen Rank #1,688

Arlen is more popular, ranked #1688 vs #1691 for Cosmo.

Is Cosmo or Arlen more popular?

Arlen is more popular, ranked #1688 compared to Cosmo at #1691 in the United States.

What do Cosmo and Arlen mean?

Cosmo means "order, universe" (Greek origin). Arlen means "pledge, oath" (Irish Gaelic origin).

Are Cosmo and Arlen boy or girl names?

Cosmo is primarily a boy name. Arlen is primarily a boy name.