Fynn vs Kassius

Baby Name Comparison — 2026

Fynn

Boy #1,923 Most Popular 1 Syllable

"fair, white, bright"

Origin: Old Irish fionn

Irish English American British

✓ All Clear

Boy #1,897 Most Popular 3 Syllables

"hollow, empty"

Origin: Latin

American English

✓ All Clear

Fynn Rank #1,923

Kassius Rank #1,897

Kassius is more popular, ranked #1897 vs #1923 for Fynn.

Is Fynn or Kassius more popular?

Kassius is more popular, ranked #1897 compared to Fynn at #1923 in the United States.

What do Fynn and Kassius mean?

Fynn means "fair, white, bright" (Old Irish fionn origin). Kassius means "hollow, empty" (Latin origin).

Are Fynn and Kassius boy or girl names?

Fynn is primarily a boy name. Kassius is primarily a boy name.