This article interrogates the intellectual foundations of global legal pluralism as a descriptive and normative position, and assesses its core claims with reference to the changing status of individuals in the postnational realm. In order to uncover the normative core of the pluralist position, the article turns to the rich tradition of value pluralism in political philosophy, particularly as articulated by Isaiah Berlin. It argues that as a normative position, pluralism – whether applied to the abstract sphere of values or the concrete realm of legal regimes – is normatively underdetermined, offering too little guidance as to how the conflicts endemic to a pluralistic world ought to be resolved. Unless it is supplemented by other, more substantive principles of political legitimacy such as democracy, freedom, equality, or justice, the principle of pluralism applied to the global legal realm is poised to reproduce, even exacerbate, existing inequalities of power and resources among those whom it affects.