While ample research has scrutinised the causes and consequences of support for the European Union, a pressing question remains: what do people actually mean when they express support for, or opposition to, their country’s membership of the institution? We use Correlational Class Analysis to assess this. Our analysis of high-quality representative Dutch survey data (n = 2053), including novel items informed by in-depth qualitative research, reveals that European Union support comes in three guises: federalist, non-federalist and instrumental-pragmatist Strikingly, many Europhiles are not federalists. In addition, we reveal that the social bases of the three types of support especially differ regarding political competence, political orientation, and media consumption. The implications for ongoing debates on European Union atttidues are discussed