According to a widely held view, Aquinas does not have a notion of subjective natural rights, understood as moral powers inhering in individuals. This article argues that this way of reading Aquinas is wrong, or at best, seriously misleading. Aquinas does identify the right, the object of justice, with the relation established between parties to an equitable exchange or interaction, and in this sense he identifies right with an objective state of affairs. But this line of analysis does not commit him to any particular construal of what constitutes a just relation. In particular, it leaves open the possibility that in some situations, the right, understood as an objectively equitable relation, presupposes that someone's claim of a right, is duly acknowledged. Moreover, in many contexts Aquinas says that individuals can claim certain liberties and immunities on the basis of some natural right, in terms that make it clear that these claims lie within the discretion of the individual. His overall conception of natural law and natural right implies that individuals can legitimately make certain claims by right, claims that emerge within some contexts and not others. He does not have a theory of rights, but neither do the scholastic jurists of the time, and his appeals to what someone can claim by right are reminiscent of their views. If they can be said to have a notion of subjective natural rights, the same can be said of Aquinas himself.