Klein vs Rein

Baby Name Comparison — 2026

Klein

Boy #6,327 Most Popular 1 Syllable

"small, little"

Origin: German

German Dutch Jewish

✓ All Clear

Boy #6,296 Most Popular 1 Syllable

"pure, clean"

Origin: Germanic rein-

Dutch German Estonian Scandinavian

✓ All Clear

Klein Rank #6,327

Rein Rank #6,296

Rein is more popular, ranked #6296 vs #6327 for Klein.

Is Klein or Rein more popular?

Rein is more popular, ranked #6296 compared to Klein at #6327 in the United States.

What do Klein and Rein mean?

Klein means "small, little" (German origin). Rein means "pure, clean" (Germanic rein- origin).

Are Klein and Rein boy or girl names?

Klein is primarily a boy name. Rein is primarily a boy name.