Objective: This pilot randomized controlled trial evaluated a novel trauma‐informed model of mindfulness‐based stress reduction (TI‐MBSR) as a phase I trauma intervention for female survivors of interpersonal violence (IPV). Method: A community‐based sample of women (mean age = 41.5, standard deviation = 14.6) with a history of IPV was randomly assigned to an 8‐week TI‐MBSR intervention (n = 23) or a waitlist control group (n = 22). Symptoms of posttraumatic stress disorder (PTSD) and depression as well as anxious and avoidant attachment were assessed pre‐ and postintervention. Results: Relative to the control group, participation in TI‐MBSR was associated with statistically and clinically significant decreases in PTSD and depressive symptoms and significant reductions in anxious attachment. Retention in the intervention was high, with most participants completing at least 5 of the 8 sessions for the intervention. Minutes of mindfulness practice per week significantly predicted reductions in PTSD symptoms. Conclusion: TI‐MBSR appears to be a promising and feasible phase I intervention for female survivors of interpersonal trauma.