Background Effective teamwork is critical to the mission of Child Advocacy Center (CAC) multidisciplinary teams. Team interventions designed to fit the unique cross-organizational context of CAC teams may improve teamwork in CACs. Methods A collaborative, community-engaged approach was used to adapt TeamSTEPPS, an evidence-based team training for healthcare, for CAC multidisciplinary teams. The adapted training was piloted with one team and evaluated using mixed methods. Team members completed pre-training (n = 26) and follow-up surveys (n = 22) and participated in qualitative interviews (n = 9). Results The adaptation process resulted in the creation of TeamTRACS (Team Training in Roles, Awareness, Communication, and Support). Participants rated TeamTRACS as highly acceptable, appropriate, feasible, relevant, and useful for CAC teams. They identified positive and negative aspects of the training, ideas for improvement, and future uses for TeamTRACS. Conclusions TeamTRACS is a feasible approach to team training in CACs, and team members find the content and skills relevant and useful. Additional research is needed to test the effectiveness of TeamTRACS and identify appropriate implementation strategies to support its use.