Few parts of Europe see as much religious observance as Northern Ireland, and fewer places in Europe have religion as one of the major cleavages on which politics seems to rest. In this article we argue that although religion is an important identifier, it acts as a reinforcer of ethno-national differences rather than as an intrinsically important difference itself. Religious differences while often symbolically important rarely emerge as points of real conflict in Northern Irish politics. It has had little impact on the ongoing process of democratization in Northern Ireland. We review an array of evidence which supports this conclusion. However, we find that religion still has a power to divide and so makes a political settlement less likely than an accommodation. © 2013 Copyright Taylor and Francis Group, LLC.