This chapter examines the supply and demand sides of populism in France. It looks at the two main populist actors i.e. the Front National (FN) and La France Insoumise (LFI). The FN exemplifies the typical radical right populist organization, primarily mobilizing grievances over immigration, while LFI shows a left-wing egalitarian and socially inclusive profile. Electoral support for populism in France is fuelled by economic instability and voter distrust of mainstream politics and of the EU. Both LFI and the FN increasingly converge on a common protectionist platform, opposing the EU and globalization. Populist voting in 2017 is found predominantly amongst the youngest cohorts and it is strongly correlated with populist attitudes. FN voters are primarily found amongst the so-called ‘losers’ of globalization in the lower social classes, who are typically more anti-immigrant and more authoritarian. LFI attracts on the other hand a broader coalition of secularized voters in the middle and lower social classes, who are primarily motivated by economic concerns. Both FN and LFI voters are more Eurosceptic than the mainstream, and they share similar concerns about globalization.