欧洲联盟经济暨货币联盟（Economic and Monetary Union of the European Union）为欧盟中使用欧元为其国内之唯一法定货币的成员国所共同组成的货币联盟（创建于单一市场之上）。目前的经济暨货币联盟最初由12个国家所组成，于2002年1月1日时开始正式运作，在此之后仍不断有成员国加入其中。就欧盟而言，经济暨货币联盟乃是透过三个阶段创建而成：经济政策协同、实现经济趋同（这表示这些国家的经济周期大致在同一阶段）、以及最终使用欧元为法定货币。

An economic and monetary union is a type of trade bloc which is composed of an economic union (common market and customs union) with a monetary union. It is to be distinguished from a mere monetary union (e.g. the Latin Monetary Union in the 19th century), which does not involve a common market. This is the sixth stage of economic integration. EMU is established through a currency-related trade pact. An intermediate step between pure EMU and a complete economic integration is the fiscal union.