Casy as a girl's name is a variant of Casey (Irish, Gaelic) and Cassie (English); the meaning of Casy is "alert, watchful".
Popularity Trend Chart
Roll over the visual for detailed rankings by year.
Source: Social Security Administration
Not sure you have the perfect name? Search to add more baby names to your My Favorites list.
Article saved.Go to My Saved Articles
Name added. View Your List