Prop

Prop may refer to:

• PROP (category theory), in mathematics
• Prop-, a prefix in chemistry
• Mouth prop, used in dentistry
• Pit prop, in mining, a length of lumber used to support the roof of a tunnel
• a construction prop, or jack post
• Propylthiouracil (PROP), a thioamide drug
• Propeller, a fan used for vehicle propulsion
• Proposition, an initiative or referendum put to a vote on a ballot
• Proposition bet, in gambling, a bet made on an outcome
• Theatrical property, an object used during a theatrical performance
• "Props" (Glee), an episode of Glee
• Prop, one of the Rugby league positions
• Prop, one of the Rugby union positions