Casimir vs James

Baby Name Comparison — 2026

Casimir

Boy #2,401 Most Popular 3 Syllables

Meaning

"proclaimer of peace"

Origin: Old Polish Slavic

Cultural Roots

Polish Czech Lithuanian French Catholic

Quick Stats

Popularity Rank
#2,401
Total SSA Count
58
Syllables
3
Formality
Formal
Nicknames
Cas, Caz, Cassi

Playground Safety Score

✓ All Clear
Full profile for Casimir →

James

Boy #5 Most Popular 1 Syllable

Meaning

"supplanter, one who follows at the heel"

Origin: Hebrew

Cultural Roots

English Scottish Biblical

Quick Stats

Popularity Rank
#5
Total SSA Count
11,793
Syllables
1
Formality
Formal
Nicknames
Jim, Jimmy, Jamie

Playground Safety Score

✓ All Clear
Full profile for James →

Popularity Comparison

Casimir Rank #2,401
James Rank #5

James is more popular, ranked #5 vs #2401 for Casimir.

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

James ___

  • James Alexander
  • James William
  • James Thomas
  • James Edward
  • James Henry
  • James Patrick

Sibling Name Ideas

Names that pair well as siblings.

If you choose Casimir

Leopold Celestine Ambrose Isolde Ottoline

If you choose James

Charlotte Olivia Emma William Henry

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 James more popular?

James is more popular, ranked #5 compared to Casimir at #2401 in the United States.

What do Casimir and James mean?

Casimir means "proclaimer of peace" (Old Polish Slavic origin). James means "supplanter, one who follows at the heel" (Hebrew origin).

Are Casimir and James boy or girl names?

Casimir is primarily a boy name. James is primarily a boy name.

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