The economy of Spain is a highly developed social market economy. It’s the world's 15th largest by nominal GDP and the sixth-largest in Europe. Spain is a member of the European Union and the eurozone, as well as the Organization for Economic Co-operation and Development and the World Trade Organization. In 2022, Spain was the nineteenth-largest exporter in the world and the fifteenth-largest importer. Spain is listed 27th in the United Nations Human Development Index and 37th in GDP per capita by the World Bank. Some of the main areas of economic activity are the automotive industry, medical technology, chemicals, shipbuilding, tourism and the textile industry. Among OECD members, Spain has a highly efficient and strong social security system, which comprises roughly 23.2% of GDP.

The euro is the official currency of 20 of the 27 member states of the European Union. This group of states is officially known as the euro area or, more commonly, the eurozone. The euro is divided into 100 euro cents.