The Marcha das Margaridas is a mass mobilization in Brazil led by women’s organizations within rural unions in alliance with other social movements and nongovernmental organizations, including transnational partners such as the World March of Women. The main political subjects are rural working women, a political identity that articulates gender, class, and urban-rural inequalities. These are foundational for the popular feminism of the Marcha. An examination of the Marcha das Margaridas guided by a theoretical discussion of poststructural feminism and postcolonial feminism on the role of political identities in building coalitions reveals that it expands the agenda of popular feminism in its relationship to historical feminist agendas and intersectional feminisms and in its coalition politics with men and the left.