Nyx vs Kien

Baby Name Comparison — 2026

Nyx

Boy #4,134 Most Popular 1 Syllable

"night"

Origin: Greek

Greek American English

✓ All Clear

Boy #4,097 Most Popular 2 Syllables

"solid, strong"

Origin: Vietnamese

Vietnamese American East Asian

✓ All Clear

Nyx Rank #4,134

Kien Rank #4,097

Kien is more popular, ranked #4097 vs #4134 for Nyx.

Is Nyx or Kien more popular?

Kien is more popular, ranked #4097 compared to Nyx at #4134 in the United States.

What do Nyx and Kien mean?

Nyx means "night" (Greek origin). Kien means "solid, strong" (Vietnamese origin).

Are Nyx and Kien boy or girl names?

Nyx is primarily a boy name. Kien is primarily a boy name.