Casidy
Irish
"curly-headed"
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Casidy Origin and Meaning
The name Casidy is a boy's name.
Casidy as a masculine name represents a gender crossover from what was traditionally more common as a feminine name. It derives from the Irish surname Cassidy, which comes from the Gaelic "Ó Caiside" meaning "descendent of Caiside." The name has a modern, approachable quality while maintaining Irish heritage connections. Unlike the more common spelling Cassidy, this variant with a single 's' creates a subtle distinction. Though less frequently used for boys than girls, Casidy fits well with contemporary trends of surname-inspired first names and the increasing fluidity of gendered naming conventions. The name carries connotations of Irish culture and history while offering a friendly, accessible sound that works well in modern contexts.