Welfarism is the idea that government should always try to make individuals’ lives go better, for them, than they otherwise would, overall. The goal of this paper is to demonstrate welfarism’s compatibility with, and potential to support, the ambitions of person-centred justice. Welfarism is a normative theory applicable to public policy generally, but one which has distinct consequences in the realm of law and legal systems. They are considered just to the extent that they generate the best possible expected welfare consequences for all of the individuals who are affected by them. Welfarism is radically person-centred because it requires lawmakers to treat each individual affected by their work as a distinct locus of value, including those who have been subordinated or ignored.