Research on psychoanalysis and politics has traditionally focused on the emancipatory potential of psychoanalysis. The relationship between activism and psychoanalysis has been less extensively studied. There is a gap in the literature regarding the impact of collective action on psychoanalysis, including its theories, institutional policies, and clinical practices. This article aims to address the gap by analyzing the impact of the recent wave of Latin American intersectional feminist mobilizations on psychoanalysis. Through a multi-sited ethnography conducted with psychoanalysts and psychoanalytic organizations in Brazil, Chile, and Argentina in 2022 and 2023, I argue that intersectional feminist mobilization has influenced psychoanalysis through acts of citizenship that are expanding the boundaries of the psychoanalytic field. This impact is evinced by collective acts of defiance, the diffusion of feminist protest tactics, and the adoption of reactivation practices that challenge, reframe, and reconfigure psychoanalytic concepts.