Mahoney could refer to:
- Mahoney (surname), an Irish last name.
People
- Chris Mahoney, baseball player
- Chris Mahoney (rower)
- Cindy Mahoney
- George Mahoney, American Medal of Honor recipient
- Jerry Mahoney (disambiguation), multiple people
- Jock Mahoney
- John Mahoney (disambiguation), multiple people
- Louis Mahoney
- Marie Mahoney
- Mary Eliza Mahoney
- Maureen Mahoney
- Mike Mahoney (disambiguation), multiple people
- Patrick Mahoney
- Steve Mahoney
- Tim Mahoney (guitarist)
- Tim Mahoney, politician
- William Mahoney (disambiguation)
Fictional characters
- Balls Mahoney
- Carey Mahoney of Police Academy
- Detective Mahoney
- Mrs. Mahoney of Kim Possible
Places
- Eugene T. Mahoney State Park near Ashland, Nebraska