Eurostat is the statistical office of the European Union.

Organized by NUTS classification

Microdata consist of sets of records containing information on individual persons, households or business entities. Microdata are used in official statistics for the production of aggregate information (usually tables). Access to confidential microdata is restricted in order to protect the anonymity of individual persons or businesses, but researchers can apply for access

The European Statistical System works with Eurostat and with member states' statistical agencies with the aim of working toward comparable statistics at EU level. There is also coordination with candidate member countries and with external data sources such as OECD, the UN, the International Monetary Fund, and the World Bank. The website includes a helpful list of important statistical agencies in each member nation.

CIS is a regional organization of former Soviet republics.

The UK Data Service collection includes major UK government-sponsored surveys, cross-national surveys, longitudinal studies, UK census data, international aggregate, business data, and qualitative data.

EU agency charged with managing the euro and monetary policy.

Public opinion surveys from the European Union

Allows one to find if and when a topic was covered in the Eurobarometer surveys

Biennial multi-country survey covering over 30 nations. Geography down to the state/province or region. Participant countries have varied by round.

Published on behalf of the European Consortium for Political Research. Includes EU member states and some outside the EU.

The data sets available at this website make it possible to compare and contrast election results across countries and regions and conduct comparisons over time. As most of the data sets are aggregated to correspond with the EUs NUTS definition, it facilitates studies that incorporate additional statistical measures as demography, labour market, etc.

The major European portal for social science data for teaching and research, CESSDA home pages organize links to catalogs of Europe�s national data archives and provide a central news form. Quick ingress is provided by a clickable map of Europe.

Helpful list from the ECPR Standing Group on Political Methodology

ELSST is a broad-based, multilingual, multi-featured thesaurus for the social sciences. Currently available in 14 languages: Danish, Dutch, Czech, English, Finnish, French, German, Greek, Lithuanian, Norwegian, Romanian, Slovenian, Spanish, and Swedish. Useful for comparing datasets/statistics presented in different European languages