This work reflects on how design can engage in emancipatory processes of knowledge-making through Militant Design Research. The argument draws on the work of scholars who are engaged in counter-hegemonic design research and practice, and questions the knowledge production structures within academia. ‘Militant research’ is presented as a Latin American theoretical-political approach to knowledge production in social sciences, engaging processes of research, educational, and political actions, and uniting organic intellectuals, researchers, and social movements. Inspired by this perspective, principles for Militant Design Research are outlined to stimulate alliances between designers and social movements for the collective production of knowledge, to overcome situations of oppression in and out of academia.