Imaginations of nationalism constitute an important aspect of migration ethics. Although nationalism is frequently invoked in the discourse on the ethics of immigration through reference to concepts like national identity, it is unclear whether national identity and immigration are incompatible. In this chapter, I discuss the relationship between nationalism and immigration. Specifically, I analyse two approaches to migration where nationalism plays a critical role. The first approach is the framing of immigration ethics in contemporary political theory and the second is populist sensational discourses. The critical role of nationalism manifests in the first approach through methodological nationalism. In the second case, nationalism plays a crucial role due to the influence it exerts on public opinion and policy. I show that nationalism inspired arguments about migration are unsatisfactory because they focus on a very narrow aspect of migration. The desideratum for further research I propose is therefore that theorists of migration should be more critical about the concept of nationalism. They should theorise migration from a standpoint that considers nations and borders as factors that have histories that are interlinked with broader social and political developments.