Cosmo vs Rush

Baby Name Comparison — 2026

Popularity Comparison

Cosmo Rank #1,691
Rush Rank #1,496

Rush is more popular, ranked #1496 vs #1691 for Cosmo.

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

Rush ___

  • Rush James
  • Rush Alexander
  • Rush William
  • Rush Thomas
  • Rush Henry
  • Rush Cole

Sibling Name Ideas

Names that pair well as siblings.

If you choose Cosmo

Cosima Orion Luna Stellan Felix

If you choose Rush

Dash Brooks Sloane Hunter Remy

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 Rush more popular?

Rush is more popular, ranked #1496 compared to Cosmo at #1691 in the United States.

What do Cosmo and Rush mean?

Cosmo means "order, universe" (Greek origin). Rush means "rush plant (marsh grass)" (Old English origin).

Are Cosmo and Rush boy or girl names?

Cosmo is primarily a boy name. Rush is primarily a boy name.

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