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