Ault as a surname may refer to:
- Chris Ault, head coach for the Nevada Wolf Pack football team
- Doug Ault, Major League Baseball player
- E.B. "Harry" Ault, American labor union newspaper editor
- George Ault, American painter
- Levi Addison Ault, businessman and bureaucrat
- Marie Ault, British actress
- Samuel Ault, Ontario political figure
- Michael Ault,Oracle Master,Author,Diver
- Thomas J Ault,Author,Photographer,Retired
Ault as a place name may refer to:
- Ault, Colorado
- Ault, Northern Ireland
- Ault Hucknall, a small village in Derbyshire, England
- Ault Park (Ontario), Ontario, Canada
- Ault, Somme, France
Ault can also refer to:
- USS Ault (DD-698)