Casyn
Meaning
"vigilant, watchful"
Origin: Irish Gaelic
Cultural Roots
Quick Stats
- Popularity Rank
- #4,583
- Total SSA Count
- 22
- Syllables
- 2
- Formality
- Casual
- Nicknames
- Cas, Casy, Ace
Baby Name Comparison — 2026
"vigilant, watchful"
Origin: Irish Gaelic
"legend, one who will be remembered, exceptionally famous person"
Origin: Latin via English
Legynd is more popular, ranked #4436 vs #4583 for Casyn.
Historical US popularity rank — lower number means more popular.
Historical trend data not available for this comparison.
Names that pair well as siblings.
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Legynd is more popular, ranked #4436 compared to Casyn at #4583 in the United States.
Casyn means "vigilant, watchful" (Irish Gaelic origin). Legynd means "legend, one who will be remembered, exceptionally famous person" (Latin via English origin).
Casyn is primarily a boy name. Legynd is primarily a boy name.