The border-crossing nature of science is well recognised, and has long been a focus of policy-makers with an interest in governing this space. The international aspect of the humanities is less clearly understood, and the extent to which it has been a focus of policy is similarly not well conceptualised. UNESCO's efforts in this area provide a useful corpus of texts through which international humanities policy can be explored. Drawing on Theodor Adorno's negative dialectics, this paper considers what UNESCO's attempts at developing international humanities policy have to say about the ontological status of the humanities, and of policy itself. In setting out an ontology of policy, it generates a concept of 'world humanities' as a means of reconstituting the humanities its own specific mode of inquiry and form of knowledge.