Hayden vs Kai

Baby Name Comparison — 2026

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
Full profile for Kai →

Popularity Comparison

Hayden Rank #154
Kai Rank #76

Kai is more popular, ranked #76 vs #154 for Hayden.

Frequently Asked Questions

Is Hayden or Kai more popular?

Kai is more popular, ranked #76 compared to Hayden at #154 in the United States.

What do Hayden and Kai mean?

Hayden means "hay valley, hedged valley" (Old English origin). Kai means "sea" (Hawaiian origin).

Are Hayden and Kai boy or girl names?

Hayden is primarily a boy name. Kai is primarily a boy name.

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← Full profile: Hayden ← Full profile: Kai Browse all baby names