Cassidie

Cassidie is a modern feminine name that emerged as a contemporary variant of Cassidy, which originated as an Irish surname meaning 'curly-haired' or 'clever.' This spelling variation with the -ie ending adds a distinctly feminine touch to the traditionally unisex Cassidy. The name gained modest popularity in North America during the 1990s and early 2000s as part of the trend toward using surnames as first names with modified spellings. Cassidie offers parents a name that feels both familiar and unique, with its recognizable sound but less common spelling. The name carries connotations of intelligence and individuality, while its Irish roots give it a touch of Celtic heritage beneath its modern American styling.

Pronounced kuh-SID-ee.

As of October 2026, Cassidie ranked #11868 in US births in 2017 SSA, peaked at #3745 in 1998.