Cassadie

Cassadie is a modern feminine name that appears to be a creative variation of Cassidy, with the distinctive spelling offering a more overtly feminine appearance. Cassidy originated as an Irish surname derived from 'Ó Caiside,' meaning 'descendant of Caiside' (clever or curly-haired). The shift from the '-y' ending to '-ie' in Cassadie softens the name while maintaining its melodic quality. This spelling variation emerged primarily in the late 20th century as parents sought unique versions of popular names. While traditional Cassidy became popular in the 1990s, Cassadie remains much rarer, appealing to parents wanting familiar sounds with distinctive presentation. The name carries associations of Irish heritage with a contemporary American twist.

Pronounced kuh-SAD-ee.

As of October 2026, Cassadie ranked #16360 in US births in 2017 SSA, peaked at #6458 in 1996.