欧盟理事会（英语：Council of the European Union；法语：Conseil de l'Union européenne，德语：Rat der Europäischen Union，意大利语：Consiglio dell'Unione Europea）是欧盟两院制立法机关的上议院，由来自欧盟成员国各国政府部长所组成的理事会；与欧洲议会为是欧盟的主要决策机构。每一个国家在理事会中都有一名理事，但代表不同国家的理事所拥有的投票数不同。在2004年罗马条约签属之后，通常也称之为“部长理事”，目的是为了把他和欧洲理事会的理事即国家元首或政府首脑区分开来。欧盟理事会正式的具体名称应该是“欧共体理事会”，不过这一名称使用并不广泛。欧盟理事会俗称欧盟部长理事会，在欧盟官方内部也简称“理事会”。

The Council of the European Union (often still referred to as the Council of Ministers, or sometimes just called the Council (Latin:Consilium)) is the third of the seven institutions of the European Union (EU) as listed in the Treaty on European Union. It is part of the essentially bicameral EU legislature (the other legislative body being the European Parliament) and represents the executive governments of the EU's member states. It is based in the Justus Lipsius building in Brussels, Belgium.