This chapter covers Diagnostic and Statistical Manual of Mental Disorders (Fifth Edition; DSM-5) criteria for Social Anxiety Disorder and potentially relevant federal educational protections, including the Individuals with Disabilities Education Improvement Act (IDEA) classifications of Emotional Disturbance and Other Health Impairment and supports offered through Section 504 of the Rehabilitation Act of 1973. Risk/protective factors, family predictors, common comorbid disorders, and cultural considerations are reviewed. Epidemiological studies estimating the prevalence of social anxiety disorder in the United States and across the world are summarized. Validated assessment tools for children and adolescents, including those that measure a number of anxiety disorders and those specific to social anxiety disorder, are included. Further, evidence-based treatments, particularly cognitive behavioral therapy, and social skills interventions, are highlighted. The impact of social anxiety disorder on social development in children and adolescents is summarized. The chapter offers activities and services that school psychologists can provide through direct service, consultation, support of families, and advocacy efforts.