Declining since 2013.
Popularity of Kassidee since 1989
Babies named Kassidee per year in U.S. Social Security records.
Data table (by decade)
| Decade | Girls |
|---|---|
| 1980s | 5 |
| 1990s | 134 |
| 2000s | 262 |
| 2010s | 228 |
| 2020s | 28 |
Meaning & origin
Kassidee is a modern invented spelling of Cassidy, an Irish surname turned given name. It first appeared in U.S. records in 1989, and while it never entered the top 1,000, it saw its peak usage in 2001. Since 2013, its use has been steadily declining. The spelling with 'K' and 'ee' reflects a broader American trend of phonetic surname respellings that gained popularity in the 1990s and 2000s. Like many such invented names, Kassidee has no recorded top state concentrations and remains a rare but recognizable choice.
Kassidee is a modern invented spelling of the Irish surname Cassidy, derived from Gaelic "Ó Caiside" meaning 'descendant of Caiside', a personal name thought to mean 'curly-headed' or 'curly-haired'. The creative spelling with 'K' and 'ee' arose in the United States in the late 20th century, reflecting a trend toward unique phonetic respellings.
Nicknames & variants
Nicknames: Kassie, Kassi, Kass, Sid, Dee
Sibling names for Kassidee
Names that share Kassidee's style, for a brother or sister.

