Sovereignism is at the crux of the current wave of radical right-wing populism (RRP). While sovereignism may concern different dimensions, claims by RRP parties and leaders about regaining sovereignty are increasingly associated with socioeconomic issues such as welfare, redistribution and international trade. Adopting a demand-side perspective, this article draws from an original cross-national survey to investigate the intersection between economic sovereignism, economic populism and globalization attitudes, and how such attitudes may shape RRP voting in Western Europe and the United States. Our results confirm that economic populism and sovereignism form coherent sets of attitudes together with perceptions of globalization, and that such attitudes have a significant effect on support for RRP actors. We find different patterns of association, however, across our European cases and the United States, which suggests that the relationship between populism, sovereignism and economic globalization is partly dependent upon national context and historical legacies.