Kai vs Rue

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 →

Rue

Girl #1,242 Most Popular 1 Syllable

Meaning

"herb of grace, regret"

Origin: Old English

Cultural Roots

English French American

Quick Stats

Popularity Rank
#1,242
Total SSA Count
188
Syllables
1
Formality
Casual

Playground Safety Score

✓ All Clear
Full profile for Rue →

Popularity Comparison

Kai Rank #76
Rue Rank #1,242

Kai is more popular, ranked #76 vs #1242 for Rue.

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

Rue ___

  • Rue Elise
  • Rue Violet
  • Rue Winter
  • Rue Iris
  • Rue Sage
  • Rue Aurora

Sibling Name Ideas

Names that pair well as siblings.

If you choose Kai

Zara Nova Mila Leo Finn

If you choose Rue

Zephyr Cleo Jasper Wren Sable

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 Rue more popular?

Kai is more popular, ranked #76 compared to Rue at #1242 in the United States.

What do Kai and Rue mean?

Kai means "sea" (Hawaiian origin). Rue means "herb of grace, regret" (Old English origin).

Are Kai and Rue boy or girl names?

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

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