Amethyst vs Kai

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

Amethyst Rank #1,324
Kai Rank #76

Kai is more popular, ranked #76 vs #1324 for Amethyst.

Popularity Over Time

Historical US popularity rank — lower number means more popular.

Middle Name Pairings

Amethyst ___

  • Amethyst Rose
  • Amethyst Grace
  • Amethyst Jane
  • Amethyst Mae
  • Amethyst Claire
  • Amethyst Elise

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 Amethyst

Jasper Violet Onyx Pearl Sage

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 Amethyst or Kai more popular?

Kai is more popular, ranked #76 compared to Amethyst at #1324 in the United States.

What do Amethyst and Kai mean?

Amethyst means "purple gemstone" (Latin origin). Kai means "sea" (Hawaiian origin).

Are Amethyst and Kai boy or girl names?

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

More Comparisons

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