Cassidy (surname)

Cassidy (Ó Caiside / Ó Casaide) is a common Irish surname and is sometimes used as a given name. The surname translates to "descendant of Caiside". Variations include: Cassady, Cassiday, Cassedy, Casadei and Cassedey. The family was originally a Munster sept called Uí Chaisín but in the 12th century a branch moved to Devenish Island in County Fermanagh, where they became a medical and poetic family, hereditary physicians to the Maguires.

People

 * Barrie Cassidy, Australian journalist
 * Bernard Matthew Cassidy, British soldier
 * Bill Cassidy, American politician and physician
 * Bob Cassidy, mentalist, speaker and author
 * Bruce Cassidy, Canadian hockey coach
 * Butch Cassidy, notorious Wild West criminal (née Robert LeRoy Parker)
 * Christopher Cassidy, American astronaut
 * Claudia Cassidy, American critic
 * Colette Cassidy, former primetime newsbreak anchor for MSNBC
 * Damian Cassidy, Irish Gaelic footballer
 * Daniel Cassidy (1943–2008), American writer, filmmaker and academic
 * Daniel Cassidy (footballer) ( 1926–1937), English football player
 * David Cassidy (1950–2017), American musician, actor and erstwhile teen idol of Partridge Family fame, son of Jack Cassidy
 * Derek Cassidy (born 1986), American football player
 * Donie Cassidy, Irish politician and businessman
 * Ed Cassidy, American drummer
 * Edward Cassidy (1924–2021), Australian Roman Catholic cardinal
 * Elaine Cassidy (disambiguation), several people
 * Eva Cassidy (1963–1996), American singer
 * George Cassidy (disambiguation), several people
 * Harry Cassidy, Canadian academic and social reformer
 * Jack Cassidy, Irish-American actor, father of David, Shaun and Patrick Cassidy
 * James Cassidy (disambiguation), several people
 * Joanna Cassidy, American actress
 * John Cassidy (disambiguation), several people
 * Joseph Cassidy (disambiguation), several people named Joe or Joseph
 * Katie Cassidy, American singer and actress, daughter of David Cassidy
 * Lewis C. Cassidy, Pennsylvania Attorney General
 * Matthew Cassidy, Irish footballer
 * Michael Cassidy (disambiguation), several people
 * Natalie Cassidy, English soap actress
 * Orange Cassidy (born 1984), ring name of American professional wrestler James Cipperly
 * Owen Cassidy (1862–1911), New York politician
 * Patrick Cassidy (disambiguation), several people
 * Raffey Cassidy, English child actress
 * Raquel Cassidy, English actress
 * Scott Cassidy, American baseball player
 * Shaun Cassidy, American celebrity, son of Jack Cassidy
 * Stephen Cassidy, American labor leader
 * Tania Cassidy, New Zealand professor of physical education
 * Taylor Cassidy, African-American educator and TikToker
 * Ted Cassidy, American actor
 * Virginia Dell {Cassidy} Blythe Clinton Dwire Kelley, mother of US President Bill Clinton
 * William F. Cassidy, American military

Fiction

 * Black Tom Cassidy, a Marvel Comics supervillain
 * Cole Cassidy, a fictional character in the Blizzard Entertainment's 2016 video game Overwatch
 * Hopalong Cassidy, a fictional cowboy created by Clarence E. Mulford
 * Kid Cassidy, a member of the Gunhawks
 * Proinsias Cassidy, a vampire from the Vertigo comic book series Preacher
 * Sean Cassidy, aka Banshee, Marvel Comics superhero
 * Theresa Cassidy, aka Siryn, Marvel Comics superheroine