Koa vs Onyx

Baby Name Comparison — 2026

Koa

Boy #292 Most Popular 2 Syllables

Meaning

"warrior, brave one"

Origin: Hawaiian

Cultural Roots

Hawaiian American Pacific Islander

Quick Stats

Popularity Rank
#292
Total SSA Count
1,145
Syllables
2
Formality
Casual
Nicknames
Ko

Playground Safety Score

✓ All Clear
Full profile for Koa →

Onyx

Boy #359 Most Popular 2 Syllables

Meaning

"black gemstone"

Origin: Greek (onyx)

Cultural Roots

American

Quick Stats

Popularity Rank
#359
Total SSA Count
927
Syllables
2
Formality
Casual
Nicknames
Ox, Oni

Playground Safety Score

✓ All Clear
Full profile for Onyx →

Popularity Comparison

Koa Rank #292
Onyx Rank #359

Koa is more popular, ranked #292 vs #359 for Onyx.

Popularity Over Time

Historical US popularity rank — lower number means more popular.

Middle Name Pairings

Koa ___

  • Koa James
  • Koa Bear
  • Koa River
  • Koa Lee
  • Koa Stone
  • Koa Reed

Onyx ___

  • Onyx James
  • Onyx Cole
  • Onyx Reed
  • Onyx Sage
  • Onyx Atlas
  • Onyx Stone

Sibling Name Ideas

Names that pair well as siblings.

If you choose Koa

Kai Leilani Malia Noa Hana

If you choose Onyx

Jade Phoenix Flint Raven Zane

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 Koa or Onyx more popular?

Koa is more popular, ranked #292 compared to Onyx at #359 in the United States.

What do Koa and Onyx mean?

Koa means "warrior, brave one" (Hawaiian origin). Onyx means "black gemstone" (Greek (onyx) origin).

Are Koa and Onyx boy or girl names?

Koa is primarily a boy name. Onyx is primarily a boy name.

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← Full profile: Koa ← Full profile: Onyx Browse all baby names