James Cassidy

James, Jamie or Jim Cassidy may refer to:


 * Jim Cassidy (footballer) (1869–?), Scottish football player
 * James Edwin Cassidy (1869–1951), American Roman Catholic bishop in Massachusetts
 * James H. Cassidy (1869–1926), United States Representative from Ohio
 * Jim Cassidy (coach) (1878–1956), former Australian rules football coach
 * James Cassidy (musician), American bass and keyboard player
 * Jim Cassidy, stage name of Rick Cassidy (1943–2013), American pornographic actor and model
 * Jim Cassidy (jockey) (born 1963), New Zealand jockey
 * Jamie Cassidy (born 1977), English footballer
 * Jimmy Cassidy (singer), English singer in the 1960s