AbstractThe previously observed heterogeneity in developmental and intergenerational trajectories of childhood trauma may root from interindividual differences in the way trauma-exposed individuals have resolved these experiences. The current study explored whether distinctive patterns of impaired mentalization in relation to trauma could be identified in a sample of 825 pregnant women who experienced childhood maltreatment and whether these heterogeneous patterns were marked by significant differences in internalized and externalized problems during pregnancy, intimate partner violence, personality dysfunctions, and antenatal attachment. A latent profile analysis applied to the seven subscales of the Failure to Mentalize Trauma Questionnaire unraveled interindividual variability in mentalizing impairments among pregnant women exposed to childhood maltreatment by identifying five distinctive types of psychological responses to trauma, each being associated in cross-sectional analyses with a specific set of symptoms and dysfunctions. Overall, the study highlights the need for tailored interventions based on the individuals’ specific impairments in mentalizing trauma and calls for future developmental research exploring the longitudinal correlates of the five documented profiles of trauma processing.