Michael Cassidy
Michael or Mike Cassidy may refer to:
- Michael Cassidy
- Michael E. Cassidy, American politician
- Michael Cassidy , American film and television actor
- Michael Cassidy , American Civil War sailor and Medal of Honor recipient
- Mike Cassidy, American entrepreneur; CEO and co-founder of Internet start-ups
- Mike Cassidy , American and Canadian football player
- Mike Cassidy, Guamanian spearfisher
- Mick Cassidy, English rugby league player
- Michael Cassidy , South African Christian evangelist