Kaiah vs Lux

Baby Name Comparison — 2026

Kaiah

Girl #2,916 Most Popular 2 Syllables

Meaning

"pure (via Katherine variant)"

Origin: Greek

Cultural Roots

American Hebrew English

Quick Stats

Popularity Rank
#2,916
Total SSA Count
57
Syllables
2
Formality
Moderate
Nicknames
Kai, Kay

Playground Safety Score

✓ All Clear
Full profile for Kaiah →

Popularity Comparison

Kaiah Rank #2,916
Lux Rank #1,225

Lux is more popular, ranked #1225 vs #2916 for Kaiah.

Popularity Over Time

Historical US popularity rank — lower number means more popular.

Middle Name Pairings

Kaiah ___

  • Kaiah Rose
  • Kaiah Grace
  • Kaiah Jade
  • Kaiah Skye
  • Kaiah Wren
  • Kaiah Blair

Lux ___

  • Lux James
  • Lux Oliver
  • Lux Finn
  • Lux Henry
  • Lux August
  • Lux Sebastian

Sibling Name Ideas

Names that pair well as siblings.

If you choose Kaiah

Zara Mia Nia Kai Tatum

If you choose Lux

Sol Rex Nova Orion Cleo

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 Kaiah or Lux more popular?

Lux is more popular, ranked #1225 compared to Kaiah at #2916 in the United States.

What do Kaiah and Lux mean?

Kaiah means "pure (via Katherine variant)" (Greek origin). Lux means "light" (Latin origin).

Are Kaiah and Lux boy or girl names?

Kaiah is primarily a girl name. Lux is primarily a boy name.

More Comparisons

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← Full profile: Kaiah ← Full profile: Lux Browse all baby names