Cosmo vs Lester

Baby Name Comparison — 2026

Cosmo

Boy #1,691 Most Popular 2 Syllables

"order, universe"

Origin: Greek

Italian Greek English American

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Boy #1,578 Most Popular 2 Syllables

"Roman fort on the River Leir"

Origin: Old English

English American

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Cosmo Rank #1,691

Lester Rank #1,578

Lester is more popular, ranked #1578 vs #1691 for Cosmo.

Is Cosmo or Lester more popular?

Lester is more popular, ranked #1578 compared to Cosmo at #1691 in the United States.

What do Cosmo and Lester mean?

Cosmo means "order, universe" (Greek origin). Lester means "Roman fort on the River Leir" (Old English origin).

Are Cosmo and Lester boy or girl names?

Cosmo is primarily a boy name. Lester is primarily a boy name.