Mannion

• Frank Mannion, Irish film producer
• Jonathan Mannion, Photographer and Director
• Pace Mannion, American former professional basketball player
• Teresa Mannion, Irish journalist and broadcaster
• Wes Mannion, Director of Australia Zoo
• Wilf Mannion, English professional football player

  Fictional characters

• Chief Jack Mannion, fictional Irish-American in the television show The District
• Peter Mannion, a fictional MP in the British television series The Thick of It