The research aims to analyze the role of the legislator within the Social Contract. The works starts with a digression into the classical tradition of the concept, to demonstrate Rousseau’s continuity with the Greek and Roman images of the legislator. Secondly, an attempt is made to define the ontological status of this figure, highlighting its distance from the philosopher, the prophet, and the prince. For this purpose, the central paragraphs delve into the themes of the connection between truth and politics, the relationship with religion, and the juxtaposition between legislative power and the absence of sovereignty. The final paragraph shows how the normative framework of the Contract is built upon a marked political naturalism, based on relativism (as recognition of situationism) and political pedagogy of Aristotelian origin (the legislator as guarantor of the realization of human nature).