Growing international migration constitutes a tremendous challenge for contemporary democracies, no more so than for minority nations. An important challenge for the latter is one of acceptance of immigration from the native‐born population, in a context in which immigrant can be seen as both a cultural and a political threat. In this article we ask what explains attitudes towards immigration in minority nations. More specifically, we seek to provide answers to these questions: What is the impact of cultural insecurity on attitudes towards immigration in minority nations? Is strong attachment to a minority nation associated with less positive attitudes towards immigration? And finally, are proponents of independence for minority nations more likely to favour a reduction in the level of immigration than those who oppose it? The article seeks to answer these questions by exploring the case of Quebec.