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
"small place of worship"
Origin: Old French via Latin
Casyn is more popular, ranked #4583 vs #4609 for Chapel.
Historical US popularity rank — lower number means more popular.
Historical trend data not available for this comparison.
Names that pair well as siblings.
Answer 3 quick questions and we'll help you decide.
1. Which style feels more like your family?
Casyn is more popular, ranked #4583 compared to Chapel at #4609 in the United States.
Casyn means "vigilant, watchful" (Irish Gaelic origin). Chapel means "small place of worship" (Old French via Latin origin).
Casyn is primarily a boy name. Chapel is primarily a boy name.