The question of whether global democracy requires a world state has with few exceptions been answered with an unequivocal 'No'. A world state, it is typically argued, is neither feasible nor desirable. Instead, different forms of global governance arrangements have been suggested, involving non-hierarchical and multilayered models with dispersed authority. The overall aim of this paper is to addresses the question of whether global democracy requires a world state, adopting a so-called 'function-sensitive' approach. It is shown that such an approach is equipped to resist the predominant binary view of a world state (either accepting it or rejecting it) and offer a more differentiated and nuanced answer to this question. In brief, a basic presumption of a function-sensitive approach is that the content, justification and status of principles of democracy are dependent on the aim they are set out to achieve, what functions they are intended to regulate (e.g., decision-making, implementation, enforcement and evaluation), and the relationship between those functions. More specifically, within a function-sensitive framework, the paper sketches the contours of an account of global democracy consisting of five regulative principles and argues-utilizing the notion of 'sufficient stateness'-that it would require supranational legislative entities and perhaps supranational judicial entities but not necessarily supranational executive entities. The world is becoming increasingly interconnected and interdependent, with ever more political, social, cultural, financial and commercial relations transgressing nation state borders. This has also brought along with it a growing need to make collective decisions at the global level to coordinate actions and solve common problems. In the last 15 years or so, the search for an institutional response to this need has taken the form of what has become known as 'global governance'. In broad strokes, two aspects of global governance have been emphasized as central: the first concerns efficiency in providing global public goods and avoiding global public bads, whereas the second concerns legitimacy This is an Open Access article distributed under the terms of the Creative Commons Attribution-NonCommercial-NoDerivatives License (http:// creativecommons.org/licenses/by-nc-nd/4.0/), which permits non-commercial re-use, distribution, and reproduction in any medium, provided the original work is properly cited, and is not altered, transformed, or built upon in any way.