Kaj vs Aiko

Baby Name Comparison — 2026

Kaj

Boy #6,083 Most Popular 1 Syllable

Meaning

"to rejoice"

Origin: Latin (Caius/Gaius)

Cultural Roots

Danish Swedish Norwegian German

Quick Stats

Popularity Rank
#6,083
Total SSA Count
15
Syllables
1
Formality
Moderate

Playground Safety Score

All Clear

Aiko

Boy #10,540 Most Popular 3 Syllables

Meaning

"child of love"

Origin: Japanese

Cultural Roots

Japanese

Quick Stats

Popularity Rank
#10,540
Total SSA Count
8
Syllables
3
Formality
Moderate

Playground Safety Score

All Clear

Popularity Comparison

Kaj Rank #6,083
Aiko Rank #10,540

Kaj is more popular, ranked #6083 vs #10540 for Aiko.

Frequently Asked Questions

Is Kaj or Aiko more popular?

Kaj is more popular, ranked #6083 compared to Aiko at #10540 in the United States.

What do Kaj and Aiko mean?

Kaj means "to rejoice" (Latin (Caius/Gaius) origin). Aiko means "child of love" (Japanese origin).

Are Kaj and Aiko boy or girl names?

Kaj is primarily a boy name. Aiko is primarily a boy name.

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