Kai vs Cooper

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

Similar Names

Milo Carson Micah

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Cooper

Boy #50 Most Popular 2 Syllables

Meaning

"From the Middle English 'couper' or Middle Low German 'kuper'; an occupational surname for a barrel maker"

Origin: English

Cultural Roots

English American Australian

Quick Stats

Popularity Rank: #50
Total SSA Count: 5,699
Syllables: 2
Formality: Casual

Playground Safety Score

✓ All Clear

Similar Names

Lucas Mark Lincoln Milo

Full profile for Cooper →

Popularity Comparison

Kai Rank #76

Cooper Rank #50

Cooper is more popular, ranked #50 vs #76 for Kai.

Frequently Asked Questions

Is Kai or Cooper more popular?

Cooper is more popular, ranked #50 compared to Kai at #76 in the United States.

What do Kai and Cooper mean?

Kai means "sea" (Hawaiian origin). Cooper means "From the Middle English 'couper' or Middle Low German 'kuper'; an occupational surname for a barrel maker" (English origin).

Are Kai and Cooper boy or girl names?

Kai is primarily a boy name. Cooper is primarily a boy name.

More Comparisons

Cooper vs Kai Kai vs Milo Kai vs Carson Kai vs Micah Kai vs Lucas

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