Kaius vs Niklaus

Baby Name Comparison — 2026

Kaius

Boy #1,137 Most Popular 3 Syllables

Meaning

"rejoice, be glad"

Origin: Latin

Cultural Roots

Latin Scandinavian Finnish

Quick Stats

Popularity Rank
#1,137
Total SSA Count
186
Syllables
3
Formality
Moderate
Nicknames
Kai

Playground Safety Score

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Niklaus

Boy #1,236 Most Popular 2 Syllables

Meaning

"victory of the people"

Origin: Greek

Cultural Roots

German Swiss Scandinavian European

Quick Stats

Popularity Rank
#1,236
Total SSA Count
162
Syllables
2
Formality
Formal
Nicknames
Nik, Niko, Klaus

Playground Safety Score

✓ All Clear
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Popularity Comparison

Kaius Rank #1,137
Niklaus Rank #1,236

Kaius is more popular, ranked #1137 vs #1236 for Niklaus.

Popularity Over Time

Historical US popularity rank — lower number means more popular.

Middle Name Pairings

Kaius ___

  • Kaius Alexander
  • Kaius James
  • Kaius Elliot
  • Kaius Arthur
  • Kaius Reid
  • Kaius Finn

Niklaus ___

  • Niklaus Joseph
  • Niklaus August
  • Niklaus Friedrich
  • Niklaus Johann
  • Niklaus Felix
  • Niklaus Maximilian

Sibling Name Ideas

Names that pair well as siblings.

If you choose Kaius

Callum Leona Aurora Finn Cassius

If you choose Niklaus

Lukas Matthias Elias Lena Anna

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 Kaius or Niklaus more popular?

Kaius is more popular, ranked #1137 compared to Niklaus at #1236 in the United States.

What do Kaius and Niklaus mean?

Kaius means "rejoice, be glad" (Latin origin). Niklaus means "victory of the people" (Greek origin).

Are Kaius and Niklaus boy or girl names?

Kaius is primarily a boy name. Niklaus is primarily a boy name.

More Comparisons

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