Background: Diabetes Mellitus is a major risk factor for cardiovascular diseases (CVD). HbA1c is widely used for monitoring long-term glycemic control, but its role as a predictor for cardiovascular events is still under evaluation. Aim: To assess the association between elevated HbA1c levels and cardiovascular events among diabetic patients. Methods: A prospective observational study was conducted on 300 diabetic patients over 1 year. Patients were divided based on HbA1c levels: <7%, 7– 9%, >9%. ECG, echocardiography, lipid profile, and history of cardiovascular events (MI, stroke, angina, heart failure) were documented. Results: A significantly higher incidence of cardiovascular events was observed in patients with HbA1c >9% (46%), compared to HbA1c <7% (12%). Elevated HbA1c showed strong correlation with dyslipidemia and hypertension. Conclusion: HbA1c is not only a marker of glycemic control but also an independent predictor of cardiovascular risk in diabetics. Regular monitoring and aggressive management of HbA1c levels are essential to prevent cardiovascular complications.