Kai vs Kayden

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

Kai Rank #76
Kayden Rank #125

Kai is more popular, ranked #76 vs #125 for Kayden.

Popularity Over Time

Historical US popularity rank — lower number means more popular.

Middle Name Pairings

Kai ___

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

Kayden ___

  • Kayden James
  • Kayden Michael
  • Kayden Lee
  • Kayden Cole
  • Kayden Robert
  • Kayden Ray

Sibling Name Ideas

Names that pair well as siblings.

If you choose Kai

Zara Nova Mila Leo Finn

If you choose Kayden

Jayden Brayden Zayden Paisley Madison

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 Kai or Kayden more popular?

Kai is more popular, ranked #76 compared to Kayden at #125 in the United States.

What do Kai and Kayden mean?

Kai means "sea" (Hawaiian origin). Kayden means "battle, companion" (Arabic (Qaydan) origin).

Are Kai and Kayden boy or girl names?

Kai is primarily a boy name. Kayden is primarily a boy name.

More Comparisons

Kayden vs Kai Kai vs Luka Kai vs Jaxon Kai vs Emiliano Kai vs Vincent
← Full profile: Kai ← Full profile: Kayden Browse all baby names