Background: Diabetes mellitus and obesity are key risk factors for long-term complications associated with type 2 diabetes mellitus. Previous studies have shown that the prevalence of diabetes mellitus and obesity is high in the KSA. However, none of these studies has focused on the investigation of diabetes mellitus and obesity in Makkah patients with type 2 diabetes mellitus. Obesity and diabetes mellitus are known to contribute directly or indirectly to the development of long-term complications of type 2 diabetes mellitus. Obesity is a serious public health concern all over the world. In KSA obesity is on rise and if proper intervention and preventive strategies were not adopted of obesity will prove fatal. Obesity among type 2 diabetic patients has proven to have adverse effects in management and control of diabetes and a considerable proportion of type 2 diabetic patients have been reported to be obese in different settings, which increase the risk of complications among them