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Otto vs Kai

Baby Name Comparison — 2026

Otto

Boy #274 Most Popular 2 Syllables

Meaning

"wealth, fortune, prosperity"

Origin: Old High German

Cultural Roots

German Scandinavian Italian English

Quick Stats

Popularity Rank
#274
Total SSA Count
1,239
Syllables
2
Formality
Moderate

Playground Safety Score

✓ All Clear

Similar Names

Frederick Myles Bradley Eduardo
Full profile for Otto →

Kai

Boy #76 Most Popular 1 Syllable

Meaning

"sea"

Origin: Hawaiian

Cultural Roots

Hawaiian Scandinavian Japanese American Chinese

Quick Stats

Popularity Rank
#76
Total SSA Count
4,276
Syllables
1
Formality
Casual

Playground Safety Score

✓ All Clear

Similar Names

Jack Eithan Griffin Dylan
Full profile for Kai →

Popularity Comparison

Otto Rank #274
Kai Rank #76

Kai is more popular, ranked #76 vs #274 for Otto.

Frequently Asked Questions

Is Otto or Kai more popular?

Kai is more popular, ranked #76 compared to Otto at #274 in the United States.

What do Otto and Kai mean?

Otto means "wealth, fortune, prosperity" (Old High German origin). Kai means "sea" (Hawaiian origin).

Are Otto and Kai boy or girl names?

Otto is primarily a boy name. Kai is primarily a boy name.

More Comparisons

Kai vs Otto Otto vs Frederick Otto vs Myles Otto vs Bradley Otto vs Eduardo
← Full profile: Otto ← Full profile: Kai Browse all baby names