The aim of this article is to provide a postcolonial reading of norms in international politics. Focusing specifically on the question of postcolonial agency, the article argues that the constructivist literature provides a distinctive spatial and temporal ordering of the ‘international’ that on the one hand can be seen to attribute agency to the postcolonial subject, while on the other can easily be interpreted as denying a presence for this subject. An alternative reading suggests that postcolonial agency is not only constituted by the international and its normative construction, but is also constituting, having the capacity to variously subvert and transform, but within limits. While some constructivist thinkers, primary among them being Christian Reus-Smit, recognise the normative order of the international as historically contested terrain, and where such contestation testifies to the role of the postcolonial world, how this role is articulated, and in what terms it is understood pose distinct challenges for understandings of agency and the constitution of the international. Focusing on Homi Bhabha and Franz Fanon, the article looks to how postcolonial thought can be mobilised to respond to this challenge, and to point to an alternative conception of the transformative potential of postcolonial agency. The turn to Bhabha and Fanon reveals such potential in both discursive and material terms so that where Bhabha can be said to frame agency and the terrain of the international in hybrid ideational terms, complementing Reus-Smit’s understanding of what can be termed the ‘postcolonial international’, Fanon’s more radical materialist ontology envisages agency in terms of embodied presence. This mobilisation of postcolonial thought provides the theoretical tools for conceptualising postcolonial subjectivity and articulations of agency in relation to the international and its constitution.