Kai vs Maddox

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
Maddox Rank #215

Kai is more popular, ranked #76 vs #215 for Maddox.

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

Maddox ___

  • Maddox James
  • Maddox Lee
  • Maddox Cole
  • Maddox Alexander
  • Maddox Thomas
  • Maddox William

Sibling Name Ideas

Names that pair well as siblings.

If you choose Kai

Zara Nova Mila Leo Finn

If you choose Maddox

Knox Beckett Ryder Sloane Quinn

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 Maddox more popular?

Kai is more popular, ranked #76 compared to Maddox at #215 in the United States.

What do Kai and Maddox mean?

Kai means "sea" (Hawaiian origin). Maddox means "son of Madoc" (Welsh origin).

Are Kai and Maddox boy or girl names?

Kai is primarily a boy name. Maddox is primarily a boy name.

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