可竞争市场（英语：Contestable market）在经济学中指在市场中可以形成竞争性价格，即便市场上只有一家企业，即垄断企业。可竞争市场的基本特点是进入退出壁垒（Barriers to entry and exit）很低；一个绝对可竞争市场是完全没有进入及退出壁垒的。可竞争市场具有“打了就跑”（Hit and run）理论的特点，即潜在竞争者进入市场谋取短期利润，当市场中的已有企业降低价格以回击新竞争者时，竞争者便立刻退出市场。因此这种情况下，即使市场上仅有一个企业，该市场仍然具有极具竞争性。

In economics, the theory of contestable markets, associated primarily with its 1982 proponent William J. Baumol, holds that there are markets served by a small number of firms that are nevertheless characterized by competitive equilibria (and therefore desirable welfare outcomes) because of the existence of potential short-term entrants.