This essay discusses how international political theory can become more receptive towards Islamism. The central claim is that Islamism can be interpreted as a form of communitarianism. To underpin this claim, the study relies on an analysis of how the concepts of community and person are conceived in communitarianism and Islamism. On the basis of the affinities of these conceptions between Islamism and communitarianism the essay shows that Islamism can be interpreted as a form of communitarianism. The study then concludes that understanding Islamism as communitarianism produces a common space for public reasoning which would deserve more consideration from political theorists. Secondly Islamism as communitarianism reassesses the possibility of a political theory engagement with Islamist theory that can benefit the recognition of human rights norms in circumstances in which Islamism is particularly influential.