Background: The research article explores the well-established link between type 2 diabetes and obesity, with a focus on the Kingdom of Saudi Arabia (KSA) where both conditions are prevalent. The high rates of diabetes in Saudi Arabia, particularly among obese individuals, highlight the urgent need for effective interventions. Bariatric surgery has emerged as a promising approach for weight loss and diabetes management, with Laparoscopic Sleeve Gastrectomy (LSG) being a preferred procedure in the region due to its efficacy and safety profile. Objective: The study aimed to investigate the impact of bariatric surgery on patients with type 2 diabetes mellitus, focusing on outcomes such as glycemic control, medication reduction, and risk of complications. It also aimed to assess the long-term effectiveness of bariatric surgery in improving diabetes management, compare different surgical procedures, and evaluate the benefits of surgery in reducing diabetes-related complications like cardiovascular and kidney diseases. Conclusion: The research underscores the positive outcomes of bariatric surgery in improving glycemic control and reducing the burden of type 2 diabetes in obese patients. While not all individuals achieve diabetes remission post-surgery, the procedure has shown significant benefits in terms of reducing medication dependence and lowering the risk of complications. The findings highlight the importance of considering bariatric surgery as a viable option for managing type 2 diabetes in obese individuals, especially those with a BMI of 35 kg/m2 and above, to enhance long-term health outcomes and quality of life in Saudi Arabia and beyond.