This study examines the impact of Cognitive-Behavioral Group Therapy (CBGT) versus Mindfulness-Based Stress Reduction (MBSR) versus Waitlist (WL) on self-views in patients with social anxiety disorder (SAD). One hundred eight unmedicated patients with SAD were randomly assigned to 12 weeks of CBGT, MBSR, or WL, and completed a self-referential encoding task (SRET) that assessed self-endorsement of positive and negative self-views pre- and post-treatment. At baseline, 40 healthy controls (HCs) also completed the SRET. At baseline, patients with SAD endorsed greater negative and lesser positive self-views than HCs. Compared to baseline, patients in both CBGT and MBSR decreased negative self-views and increased positive self-views. Improvement in self-views, specifically increases in positive (but not decreases in negative) self-views, predicted CBGT- and MBSR-related decreases in social anxiety symptoms. Enhancement of positive self-views may be a shared therapeutic process for both CBGT and MBSR for SAD.