Since the 2016 referendum, Brexit has been a mainstay of political, economic and social discussion across the UK and Europe. However, the consequences of this decision for Ireland have often gone under-explored. For the Republic, these include the trade repercussions of Britain’s possible exit of the Single Market and Customs Union, potentially counterbalanced by movement of MNCs to Dublin. For Northern Ireland, issues surrounding the border ‘backstop’ and Good Friday Agreement have also spurred concerns over the re-ignition of sectarian divide. The dynamic nature of the Brexit question leaves it difficult to anticipate precise impacts of the decision, yet the for Ireland these are likely to be as significant as they are lasting.