jats:pIn the mid-nineteenth century—even as many European liberals took a “turn to empire”—Mexican President Benito Juárez and his supporters enunciated an anti-imperial, liberal vision for international politics. In the context of the French intervention, Mexican liberals rejected claims that Europe’s material progress conferred upon the continent a “civilizing mission” vis-à-vis the rest of the world. Reconfiguring liberal and republican scripts, jats:italicjuaristas</jats:italic> proposed an order legitimated by popular sovereignty and based on equality among states, non-intervention, and republican fraternity. This article situates jats:italicjuarista</jats:italic> liberal internationalism in its historical context and in light of recent debates over liberalism’s longstanding entanglements with empire. By uncovering this overlooked strand of anti-imperial liberalism from the periphery, this article helps to decenter debates on liberal political thought and liberalism’s international implications. The jats:italicjuaristas’</jats:italic> rejoinder, we argue, should be integral to constructing a more pluralist and global understanding of the lineages of liberal internationalism.</jats:p>