The Northern Ireland General Election Survey, 2017 investigates how the Northern Ireland electorate voted (or didn’t vote) at the 2017 General Election and the reasons behind their voting choices. The survey measures the demography of voting, the basis of support for particular parties and the key election issues, as identified by voters themselves. The study also asks for opinions on a range of important political, religious and social issues in Northern Ireland. The data is constructed from 1,155 face-to-face interviews with a weighted representative sample of electors across Northern Ireland, with interviews completed within three weeks after the date of the General Election (8 June 2017). The study builds on a series of post general elections surveys conducted in Northern Ireland; on a similar survey from 2010, the Northern Ireland General Election Attitudes Survey (held under SN 6553), and on the 2015 Northern Ireland General Election Survey (held under SN 7523). Further information about this study can be found on its Gateway to Research webpage. The study addresses topics such as choice of political parties, reasons for voting or not voting, attitudes towards other political parties, views on Northern Ireland’s political institutions, attitudes to key social and moral issues, and demographic measurement.