Koi vs Zay

Baby Name Comparison — 2026

Koi

Boy #2,684 Most Popular 1 Syllable

Meaning

"love, romantic feeling"

Origin: Japanese

Cultural Roots

Japanese American Hawaiian

Quick Stats

Popularity Rank
#2,684
Total SSA Count
49
Syllables
1
Formality
Casual

Playground Safety Score

✓ All Clear
Full profile for Koi →

Zay

Boy #2,854 Most Popular 1 Syllable

Meaning

"light, radiance"

Origin: Arabic

Cultural Roots

Arabic African-American American

Quick Stats

Popularity Rank
#2,854
Total SSA Count
45
Syllables
1
Formality
Casual

Playground Safety Score

✓ All Clear
Full profile for Zay →

Popularity Comparison

Koi Rank #2,684
Zay Rank #2,854

Koi is more popular, ranked #2684 vs #2854 for Zay.

Popularity Over Time

Historical US popularity rank — lower number means more popular.

Middle Name Pairings

Koi ___

  • Koi River
  • Koi Blue
  • Koi James
  • Koi Lee
  • Koi Finn
  • Koi Reef

Zay ___

  • Zay Alexander
  • Zay Michael
  • Zay James
  • Zay Emmanuel
  • Zay Xavier
  • Zay Leon

Sibling Name Ideas

Names that pair well as siblings.

If you choose Koi

Kai Reef Cove Marina River

If you choose Zay

Zara Kai Nova Aria Axel

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 Koi or Zay more popular?

Koi is more popular, ranked #2684 compared to Zay at #2854 in the United States.

What do Koi and Zay mean?

Koi means "love, romantic feeling" (Japanese origin). Zay means "light, radiance" (Arabic origin).

Are Koi and Zay boy or girl names?

Koi is primarily a boy name. Zay is primarily a boy name.

More Comparisons

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← Full profile: Koi ← Full profile: Zay Browse all baby names