Derek vs Kai

Baby Name Comparison — 2026

Derek

Boy #258 Most Popular 2 Syllables

Meaning

"ruler of the people"

Origin: Germanic

Cultural Roots

English American Dutch German

Quick Stats

Popularity Rank
#258
Total SSA Count
1,355
Syllables
2
Formality
Moderate
Nicknames
Dere, Rick

Playground Safety Score

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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

Derek Rank #258
Kai Rank #76

Kai is more popular, ranked #76 vs #258 for Derek.

Popularity Over Time

Historical US popularity rank — lower number means more popular.

Middle Name Pairings

Derek ___

  • Derek James
  • Derek Lee
  • Derek Michael
  • Derek Thomas
  • Derek Allen
  • Derek Scott

Kai ___

  • Kai James
  • Kai Alexander
  • Kai Michael
  • Kai Robert
  • Kai William
  • Kai Thomas

Sibling Name Ideas

Names that pair well as siblings.

If you choose Derek

Kyle Brandon Ashley Megan Chad

If you choose Kai

Zara Nova Mila Leo Finn

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 Derek or Kai more popular?

Kai is more popular, ranked #76 compared to Derek at #258 in the United States.

What do Derek and Kai mean?

Derek means "ruler of the people" (Germanic origin). Kai means "sea" (Hawaiian origin).

Are Derek and Kai boy or girl names?

Derek is primarily a boy name. Kai is primarily a boy name.

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