Kacper vs Theodore

Baby Name Comparison — 2026

Kacper

Boy #5,668 Most Popular 2 Syllables

Meaning

"treasurer, keeper of treasure"

Origin: Persian Gathaspar

Cultural Roots

Polish Czech Slovak Central European

Quick Stats

Popularity Rank
#5,668
Total SSA Count
17
Syllables
2
Formality
Formal
Nicknames
Kac, Kaś

Playground Safety Score

✓ All Clear
Full profile for Kacper →

Popularity Comparison

Kacper Rank #5,668
Theodore Rank #4

Theodore is more popular, ranked #4 vs #5668 for Kacper.

Popularity Over Time

Historical US popularity rank — lower number means more popular.

Middle Name Pairings

Kacper ___

  • Kacper Jan
  • Kacper Marek
  • Kacper Soren
  • Kacper Cole
  • Kacper Finn
  • Kacper Aleksy

Theodore ___

  • Theodore James
  • Theodore William
  • Theodore Alexander
  • Theodore John
  • Theodore Henry
  • Theodore Arthur

Sibling Name Ideas

Names that pair well as siblings.

If you choose Kacper

Zosia Maja Marek Aleksy Hania

If you choose Theodore

Olivia Charlotte Amelia Eleanor Oliver

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 Kacper or Theodore more popular?

Theodore is more popular, ranked #4 compared to Kacper at #5668 in the United States.

What do Kacper and Theodore mean?

Kacper means "treasurer, keeper of treasure" (Persian Gathaspar origin). Theodore means "divine gift" (Greek origin).

Are Kacper and Theodore boy or girl names?

Kacper is primarily a boy name. Theodore is primarily a boy name.

More Comparisons

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← Full profile: Kacper ← Full profile: Theodore Browse all baby names