Summary Mental Health and Psychosocial Support are integral components of the multisectoral programs addressing wartime sexual violence. In the Democratic Republic of Congo, an integrated framework known as the one-stop centre model was implemented at Panzi Hospital for delivering medical, legal, psychosocial, and socioeconomic support services for wartime sexual violence survivors. While recent developments broadly described this model with more focus on its medical pillar, there is limited knowledge on how its psychosocial support component can be harnessed in addressing wartime sexual violence. This article explored the roles and ethics of psychosocial support in integrated health services based on the research data from 11 in-depth interviews with the psychosocial support workers and desk reviews. Findings The findings of this study indicated that the roles and ethics of psychosocial workers in addressing wartime sexual violence are limited by the lack of adequately trained staff members, low professional status, and complex ethical challenges. In this case, psychosocial support draws more from virtue ethics and moral constructivism and less from professional utilitarianism and deontology. While both approaches are integral to providing support services, combining them is necessary for the complementarity and consistency of therapeutic processes. The study's findings also demonstrated the lack of professional social work and mental health interventions in the Congo and suggested coordinated actions engaging social work education, policy, and research developments. Applications We conclude that the roles and ethics of psychosocial support should be of serious concern to decision-makers, practitioners, and educators.