Cassidy

//ˈkæsɪdi// name

name ·Rare ·Advanced level

Definitions

Proper Noun
  1. 1
    A surname from Irish anglicized from Ó Caiside (“descendant of Caiside”). Caiside is a byname from Irish cas (“curly”) meaning “curly-haired”.
  2. 2
    A surname from Irish, a rare anglicization of Mac Casarlaigh (Casserly).
  3. 3
    A male given name transferred from the surname.
  4. 4
    A female given name transferred from the surname, of modern American usage.
  5. 5
    A community in southern Vancouver Island, British Columbia, Canada.

Example

More examples

"Expedition 63 Commander Chris Cassidy of NASA continued working on a variety of science hardware throughout the International Space Station today."

Etymology

From the Irish surname, Anglicized from Ó Caiside (“descendant of Caiside”), from cas (“curly-haired”).

Related phrases

Seaver-Cassidy syndrome

More for "cassidy"

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.