Racial trauma is increasingly recognized as a critical contributor to psychological distress, yet little is known about how it operates within psychotherapy processes in systemic therapy contexts. This study examined whether therapeutic alliance functions as a relational mechanism linking racial trauma to treatment outcomes in systemic therapy. Mediation models tested the role of alliance in predicting post-treatment depression and anxiety while controlling for baseline symptoms. Contrary to expectations, therapeutic alliance did not mediate the relationship between racial trauma and outcomes. However, racial trauma demonstrated a consistent direct association with improved post-treatment symptoms, suggesting that clients reporting greater racial trauma may experience meaningful symptom reduction in relational therapy contexts.