Casidee

Casidee is a modern feminine name that appears to be a creative variant of Cassidy, which originated as an Irish surname derived from 'Ó Caiside,' meaning 'descendant of Caiside' (from 'caiside' meaning 'curly-haired'). The unique spelling with 'ee' ending gives Casidee a distinctly contemporary and feminine feel. This spelling variation emerged primarily in the United States during the late 20th century, reflecting the trend toward personalized name spellings. While not among the most common names, Casidee appeals to parents seeking a name that sounds familiar yet stands out. The name conveys a friendly, approachable quality with its soft sounds and playful spelling.

Pronounced kuh-sid-EE.

As of October 2026, Casidee ranked #14693 in US births in 2016 SSA, peaked at #8662 in 2000.