Kasyn vs Lyon

Baby Name Comparison — 2026

Kasyn

Boy #2,055 Most Popular 2 Syllables

"vigilant in war"

Origin: Irish

American Irish

✓ All Clear

Boy #1,890 Most Popular 2 Syllables

"lion"

Origin: French/Latin

French English American

✓ All Clear

Kasyn Rank #2,055

Lyon Rank #1,890

Lyon is more popular, ranked #1890 vs #2055 for Kasyn.

Is Kasyn or Lyon more popular?

Lyon is more popular, ranked #1890 compared to Kasyn at #2055 in the United States.

What do Kasyn and Lyon mean?

Kasyn means "vigilant in war" (Irish origin). Lyon means "lion" (French/Latin origin).

Are Kasyn and Lyon boy or girl names?

Kasyn is primarily a boy name. Lyon is primarily a boy name.