Globally, two of the most common metabolic conditions are type 2 diabetes mellitus (T2DM) and hypothyroidism, affecting a significant portion of the population. This research systematically investigated the frequency of hypothyroidism and hyperlipidemia in patients with type 2 diabetes mellitus (T2DM), utilizing a multifaceted methodology that integrated demographic, anthropometric, clinical, and biochemical data. A total of 200 middle-aged T2DM patients (age: 55 ± 15.18 years) were included in the study, of which men represented 67.2%. Notably, 79% of the subjects were overweight or obese. Whilst an initial association with obesity and hypothyroidism was noted, this was no longer significant following sex adjustment. Hyperlipidemia was observed in 46.5% of the patients with type 2 diabetes mellitus (T2DM), Among the study population, the most prevalent lipid abnormalities were low high-density lipoprotein cholesterol (HDL-C; 62.08%), elevated low-density lipoprotein cholesterol (LDL-C; 64.73%), hypercholesterolemia (28.37%), and hypertriglyceridemia (58.2%). Dyslipidemia profiles in diabetic patients were significantly associated with female gender, obesity, and hypertension. Moreover, both longer duration of type 2 diabetes mellitus (T2DM) and poor glycemic control were independently correlated with increased levels of LDL-C, triglycerides, and total cholesterol, underscoring their role as key contributors to the dyslipidemic state observed in this population, reflecting the overall metabolic burden of this cohort. Hypothyroidism occurred in 12.33% of T2DM individuals. Since thyroid hormones play a key role in the regulation of metabolism, reduced thyroid hormone synthesis as indicated by raised TSH levels (>4.3 mU/L) added to metabolic disturbances in the form of dyslipidemia and insulin resistance towards further diabetes progression. The results stress the importance of the inclusion of regular thyroid and lipid profile tests in the management of T2DM to prevent complications and improve metabolic health.