Anchored in the port of Marseille, this article studies encounters between international solidarity, American humanitarianism, and Vichy France’s nationalism in times of war and exile. Being the main free harbour in France after the country’s defeat against Germany in the spring of 1940, Marseille saw hundreds of thousands of refugees seeking refuge and exile on its shores. This massive flux gave rise to a local internationalism of humanitarian and solidarity networks bonded by an anti-fascist ideology. American humanitarians, diplomats, and radical leftist militants shaped this eclectic internationalism by providing crucial support for European refugees escaping the Nazi-backed state repression in France. Using the local archives of the department of Bouches-du-Rhône, this paper analyses how these actors and their ideologies met in Marseille and interacted with or against Vichy France’s nationalism. In the end, the extended historiography on refugees, American humanitarianism, solidarity networks, and French nationalism will be used to analyse global ideologies in a local context during the Second World War.