Kai vs Mariel

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 →

Mariel

Girl #1,041 Most Popular 3 Syllables

Meaning

"star of the sea"

Origin: Hebrew via Dutch

Cultural Roots

Dutch Spanish French Scandinavian

Quick Stats

Popularity Rank
#1,041
Total SSA Count
241
Syllables
3
Formality
Moderate
Nicknames
Mari, Elle, Mia

Playground Safety Score

✓ All Clear
Full profile for Mariel →

Popularity Comparison

Kai Rank #76
Mariel Rank #1,041

Kai is more popular, ranked #76 vs #1041 for Mariel.

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

Mariel ___

  • Mariel Grace
  • Mariel Rose
  • Mariel Louise
  • Mariel Claire
  • Mariel Jane
  • Mariel Elise

Sibling Name Ideas

Names that pair well as siblings.

If you choose Kai

Zara Nova Mila Leo Finn

If you choose Mariel

Elspeth Cecile Florian Lucien Adele

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 Mariel more popular?

Kai is more popular, ranked #76 compared to Mariel at #1041 in the United States.

What do Kai and Mariel mean?

Kai means "sea" (Hawaiian origin). Mariel means "star of the sea" (Hebrew via Dutch origin).

Are Kai and Mariel boy or girl names?

Kai is primarily a boy name. Mariel is primarily a girl name.

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