Rei vs Rainier

Baby Name Comparison — 2026

Rei

Boy #3,800 Most Popular 1 Syllable

"courtesy, respect, gratitude"

Origin: Japanese kanji 礼

Japanese American Brazilian

✓ All Clear

Boy #3,988 Most Popular 2 Syllables

"wise counsel and army, counseling warrior"

Origin: Old German

German French Belgian American

✓ All Clear

Rei Rank #3,800

Rainier Rank #3,988

Rei is more popular, ranked #3800 vs #3988 for Rainier.

Is Rei or Rainier more popular?

Rei is more popular, ranked #3800 compared to Rainier at #3988 in the United States.

What do Rei and Rainier mean?

Rei means "courtesy, respect, gratitude" (Japanese kanji 礼 origin). Rainier means "wise counsel and army, counseling warrior" (Old German origin).

Are Rei and Rainier boy or girl names?

Rei is primarily a boy name. Rainier is primarily a boy name.