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
"from Evreux, from the Evreux region"
Origin: French/Norman
Casyn is more popular, ranked #4583 vs #4598 for Devereaux.
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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Casyn is more popular, ranked #4583 compared to Devereaux at #4598 in the United States.
Casyn means "vigilant, watchful" (Irish Gaelic origin). Devereaux means "from Evreux, from the Evreux region" (French/Norman origin).
Casyn is primarily a boy name. Devereaux is primarily a boy name.