The separate and parallel systems of schooling in Northern Ireland that largely reflect Protestant/Catholic divisions have been much criticised on the grounds that they have failed to promote social cohesion. These divisions are also evident in teacher education provision and attempts to offset the negative effects of this separation have made only a limited impact. By means of a brief survey of the relationship between two de facto religiously separated teacher education institutions, from the early twentieth century to the present day, this article considers the issues for teacher educators and argues that separateness at this level has been disadvantageous in relation to the challenges of preparing student teachers to work in a diverse, plural society. (Contains 4 notes.)