The European Quality of Government Index (EQI) is the result of novel survey data regional (e.g. sub-national) level governance within the EU. The data was first gathered and published in 2010 and then repeated in 2013 and 2017, with the next round expected in 2020. The index is based on a large citizen survey where respondents are asked about perceptions and experiences with public sector corruption, along with the extent to which citizens believe various public sector services are impartially allocated and of good quality. It is the first source of data to date that allows researchers to compare QoG within and across countries in a multi-country context. It aims to provide researchers and policy makers a tool to better understand how governance varies within countries and now, over time. It covers all 28 member states and two accession countries (Serbia and Turkey are also included in the 2013 round). The sub-national regions are at the NUTS 1 or NUTS 2 level, depending on the country. Currently, it provides data for up to 206 regions, depending on the year in question. In the three years of the EQI survey, it has roughly 200,000 respondents in total. Here, it provides both the regional level data, as well as the underlying micro data free of charge for researchers and practitioners interested in regional governance in Europe.