Ticket scalping, also known as ticket resale or ticket touting, is the act of reselling tickets for admission to events. It involves buying tickets from licensed sellers and then selling them for a price determined by the individual or company in possession of the tickets. Ticket scalping is common in both sporting and musical events, and it is a form of arbitrage that arises when the number demanded at the sale price exceeds the number supplied.

Ticket scalpers work outside events, often showing up with unsold tickets from brokers offices on a consignment basis or showing up without tickets and buying extra tickets from fans at or below face value on a speculative basis hoping to resell them at a profit. There are many full-time scalpers who are regulars at particular venues and may even have a pool of loyal buyers.

Scalping tickets is illegal in many areas due to the fact that it is unethical and can be harmful to the success of an event. If a scalper buys up the majority of tickets that are available and attempts to resell them for a much more expensive price, the event can quickly become inaccessible to many people who would otherwise have attended.