Michael Leahy

• Michael Leahy (author), American writer
• Michael Leahy (politician), Irish politician
• Michael P. T. Leahy, English philosopher
• Michael Leahy (trade unionist), General Secretary of the British Trade Union Community
• Mick Leahy (explorer), Australian explorer
• Mick Leahy (boxer), Irish/British boxer
• Mick Leahy (hurler), Irish hurler
• Mike Leahy, British virologist and TV presenter
• Mick Leahy (footballer), Irish footballer
• Mick Leahy (rugby union), Irish rugby union player