Cosmo vs Lyon

Baby Name Comparison — 2026

Cosmo

Boy #1,691 Most Popular 2 Syllables

Meaning

"order, universe"

Origin: Greek

Cultural Roots

Italian Greek English American

Quick Stats

Popularity Rank
#1,691
Total SSA Count
99
Syllables
2
Formality
Casual
Nicknames
Cos

Playground Safety Score

✓ All Clear
Full profile for Cosmo →

Popularity Comparison

Cosmo Rank #1,691
Lyon Rank #1,890

Cosmo is more popular, ranked #1691 vs #1890 for Lyon.

Popularity Over Time

Historical US popularity rank — lower number means more popular.

Middle Name Pairings

Cosmo ___

  • Cosmo James
  • Cosmo Ray
  • Cosmo Lee
  • Cosmo Blue
  • Cosmo Fox

Lyon ___

  • Lyon James
  • Lyon Alexander
  • Lyon Thomas
  • Lyon William
  • Lyon Cole
  • Lyon Reid

Sibling Name Ideas

Names that pair well as siblings.

If you choose Cosmo

Cosima Orion Luna Stellan Felix

If you choose Lyon

Sienna Paris Rowan Celeste Austen

Which Name Fits Your Family?

Answer 3 quick questions and we'll help you decide.

1. Which style feels more like your family?

Frequently Asked Questions

Is Cosmo or Lyon more popular?

Cosmo is more popular, ranked #1691 compared to Lyon at #1890 in the United States.

What do Cosmo and Lyon mean?

Cosmo means "order, universe" (Greek origin). Lyon means "lion" (French/Latin origin).

Are Cosmo and Lyon boy or girl names?

Cosmo is primarily a boy name. Lyon is primarily a boy name.

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← Full profile: Cosmo ← Full profile: Lyon Browse all baby names