Background: Alcohol use disorder (AUD) is a chronic, relapsing condition with significant psychological and social consequences. Cognitive Behavioral Therapy (CBT) is widely used to treat addiction, but its efficacy in reducing relapse rates among individuals recovering from alcohol addiction remains an area of active research. Objective: This study aims to evaluate the effectiveness of CBT in reducing relapse rates, improving coping skills, and enhancing psychological outcomes (depression and anxiety) among individuals recovering from AUD. Methods: A longitudinal study was conducted with 100 participants diagnosed with AUD, randomized into either a CBT treatment group (n = 50) or a control group (n = 50). The CBT group received a structured 12-week intervention, while the control group received standard care. Relapse rates, alcohol consumption, coping skills, self-efficacy, and symptoms of depression and anxiety were measured at baseline, post-treatment, and at a 6-month follow-up. Results: The CBT group exhibited significantly lower relapse rates (30%) compared to the control group (55%) at 6-month follow-up (p = 0.015). Additionally, the CBT group showed a significant reduction in alcohol consumption, from 25.3 to 8.4 drinks per week, while the control group only reduced consumption from 24.7 to 19.3 drinks per week (p < 0.001). Coping skills and self-efficacy improved significantly in the CBT group (p < 0.001), and these gains were sustained at follow-up (p = 0.02). The CBT group also experienced significant reductions in depression (BDI) and anxiety (GAD-7) scores, compared to minimal changes in the control group (p < 0.001 for both). Conclusion: CBT is an effective therapeutic intervention for reducing relapse rates, improving alcohol consumption patterns, enhancing coping skills, and alleviating depression and anxiety in individuals recovering from AUD. These findings suggest that CBT should be integrated into standard treatment protocols for alcohol use disorder and further explored for long term efficacy.