Trauma theory suggests that to recover from exposure to traumatic events, such as exposure to violence, therapeutic interventions should include opportunities to disclose and to process the fearful and stressful events. Yet little is known about the circumstances that foster disclosure of such information in therapeutic environments by children and related mental health outcomes for those children. In this study, the process of disclosure was examined among children ages 6 to 12 years (N = 121) in a community-based intervention program for children exposed to intimate partner violence (IPV). Therapists documented children's spontaneous disclosure in their group. Mothers and children completed demographic and standardized attitudinal and mental health questionnaires. Fifty-two percent of children spontaneously disclosed during therapy. Child ethnicity, harm to the child, internalizing behavioral adjustment problems, and engagement in therapy predicted disclosure. Disclosure within the group was associated with gains for individual children in internalizing behavioral adjustment problems and improvement in attitudes and beliefs concerning the acceptability of violence. (Contains 3 tables.)