博彩交易所（Bet Exchange），是一个可以让参与者自由买卖、处分彩券的交易所。他能撮合不同赔率的彩券，具交易所的功能，为彩券提供可作二手交易的次级市场，而不是彩券发行的初级市场。运动彩券是最常在博彩交易所交易之彩券。

博彩交易所不会提供何任彩给参与者，赔率则由市场决定，而参与者在任何时候均可自由地进出市场。博彩交易所和证券交易所的运作原理是相同，证券交易市场上的各种交易方法与理论与博彩交易市场完全一致，唯一不同的是，证券交易市场在看好股票前景的情况下，会出现价格上升，而博彩交易市场上看好某一博彩项目的话则会出现赔率下跌的情况，这是因为博彩项目的赔率与看好的关系成反比的原因。

A betting exchange is a marketplace for customers to bet on the outcome of discrete events. Betting exchanges offer the same opportunities to bet as a bookmaker with a few differences. You can buy and sell the outcome, you can trade in real-time throughout the event and you trade out to cut your losses or lock in profit. Bookmaker operators generate revenue by offering less efficient odds. Betting exchanges normally generate revenue by charging a transaction fee.