Kacper vs Oliver

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 →

Oliver

Boy #3 Most Popular 3 Syllables

Meaning

"olive tree"

Origin: Latin

Cultural Roots

English French Scandinavian

Quick Stats

Popularity Rank
#3
Total SSA Count
15,343
Syllables
3
Formality
Moderate
Nicknames
Ollie, Oli

Playground Safety Score

✓ All Clear
Full profile for Oliver →

Popularity Comparison

Kacper Rank #5,668
Oliver Rank #3

Oliver is more popular, ranked #3 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

Oliver ___

  • Oliver James
  • Oliver Thomas
  • Oliver William
  • Oliver Henry
  • Oliver John
  • Oliver Benjamin

Sibling Name Ideas

Names that pair well as siblings.

If you choose Kacper

Zosia Maja Marek Aleksy Hania

If you choose Oliver

Olivia Charlotte Emma Sophia Amelia

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 Oliver more popular?

Oliver is more popular, ranked #3 compared to Kacper at #5668 in the United States.

What do Kacper and Oliver mean?

Kacper means "treasurer, keeper of treasure" (Persian Gathaspar origin). Oliver means "olive tree" (Latin origin).

Are Kacper and Oliver boy or girl names?

Kacper is primarily a boy name. Oliver is primarily a boy name.

More Comparisons

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