The prevalence of trauma exposure among youth is a major public health concern. Students who have experienced a traumatic event are at increased risk for academic, social, and emotional problems. School can be an ideal setting for mental health professionals to intervene with traumatized students, school staff, and parents both immediately following a traumatic event and when symptoms of posttraumatic stress disorder and other trauma-related mental health problems develop. This article describes evidence-based treatments for posttraumatic stress disorder and outlines practical approaches to use in schools.