Casimir vs Marius

Baby Name Comparison — 2026

Marius

Boy #2,422 Most Popular 3 Syllables

Meaning

"male, virile"

Origin: Latin

Cultural Roots

Latin Romanian Scandinavian French German

Quick Stats

Popularity Rank
#2,422
Total SSA Count
57
Syllables
3
Formality
Formal
Nicknames
Mari, Rius

Playground Safety Score

✓ All Clear
Full profile for Marius →

Popularity Comparison

Casimir Rank #2,401
Marius Rank #2,422

Casimir is more popular, ranked #2401 vs #2422 for Marius.

Popularity Over Time

Historical US popularity rank — lower number means more popular.

Middle Name Pairings

Casimir ___

  • Casimir James
  • Casimir Anthony
  • Casimir John
  • Casimir Louis
  • Casimir Edmund
  • Casimir Felix

Marius ___

  • Marius Alexandre
  • Marius Stefan
  • Marius Jean
  • Marius Felix
  • Marius Emile
  • Marius Lucian

Sibling Name Ideas

Names that pair well as siblings.

If you choose Casimir

Leopold Celestine Ambrose Isolde Ottoline

If you choose Marius

Cécile Cosette Felix Adrian Valeria

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 Casimir or Marius more popular?

Casimir is more popular, ranked #2401 compared to Marius at #2422 in the United States.

What do Casimir and Marius mean?

Casimir means "proclaimer of peace" (Old Polish Slavic origin). Marius means "male, virile" (Latin origin).

Are Casimir and Marius boy or girl names?

Casimir is primarily a boy name. Marius is primarily a boy name.

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← Full profile: Casimir ← Full profile: Marius Browse all baby names