Prop is an abbreviation for:

• Propeller, a bladed propulsion device.
• Theatrical properties, carriable items used in performances.
• Propaganda
• Proposition, a type of referendum
• Props, a slang term meaning to give "proper respect" or "proper recognition" another person; for example, "I've got to give props to Dave for the way he handled that situation."

Prop can also refer to:

• One of several rugby positions.
• A support for something, for example a clothes prop used to hold the middle of a clothes line up.