This article argues that orthodox international law is committed to the state at the expense of the Other, that which is not the state, and, at a more philosophical level, to ontology at the expense of ethics. Drawing on the philosophy of Emmanuel Lévinas, it seeks a shift from ontology, focusing on Being, to ethics, constituted by our responsibility to the Other. Section 1 argues that international law assumes the natural existence of a Being of the State and that this ontology of statehood constitutes the ontology of international law. Section 2 explains how the ontology of statehood having been transformed into an epistemology ultimately leads to the violent suppression of alterity. Section 3 proposes a number of projects and strategies through which we may pursue the ethics of alterity in international law. The article concludes with a discussion of three tensions within international law: statehood–alterity, ontology–ethics, and law–politics.