Curly-haired; clever
A modern variant of the Irish surname Cassidy, derived from the Gaelic 'O Caiside'. It historically refers to descendants of Caiside, a name meaning 'curly-headed'. In modern usage, it is often associated with the word 'clever' or 'ingenious' due to the family's historical role as physicians and scholars.
Less common today
Cassity isn't in the latest US Top 1000. It last peaked at #4,203 in 1998.
Social media personality and YouTuber
US births per 5-year period, 1990–present (SSA data).
