Koji vs Aiko

Baby Name Comparison — 2026

Koji

Boy #4,251 Most Popular 2 Syllables

"luminous second son"

Origin: Japanese ko (light) and ji (second son)

Japanese

✓ All Clear

Boy #10,540 Most Popular 3 Syllables

"child of love"

Origin: Japanese

Japanese

✓ All Clear

Koji Rank #4,251

Aiko Rank #10,540

Koji is more popular, ranked #4251 vs #10540 for Aiko.

Is Koji or Aiko more popular?

Koji is more popular, ranked #4251 compared to Aiko at #10540 in the United States.

What do Koji and Aiko mean?

Koji means "luminous second son" (Japanese ko (light) and ji (second son) origin). Aiko means "child of love" (Japanese origin).

Are Koji and Aiko boy or girl names?

Koji is primarily a boy name. Aiko is primarily a boy name.