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Abstract : Coronary artery bypass grafting (CABG) is a major surgical operation where atheromatous blockages in a patient’s coronary arteries are bypassed with harvested venous or arterial conduits. Post-CABG mortality has been associated with multiple patient factors such as advanced age, preoperative renal dysfunction, diabetes, low preoperative Ejection Fraction (EF), stroke, carotid artery disease, dysrhythmias, concomitant valvular disease and multiple other comorbidities. To assess the mortality rate and discuss the possible risk factors associated with mortality following CABG. A cross sectional study was conducted in the Cardiac Center in Erbil, Kurdistan region of Iraq from June 2020 to March 2021. Data was collected from case files of 200 patients in the hospital records and follow up data was obtained after a 6-15-month period by interviewing the patients directly. Data were analysed using the Statistical Package for Social Sciences version 23 (SPSS, IBM, Armonk, NY, USA). The mortality rate after CABG was 8.5% in the study duration, with the majority being in the 50-59 age group. Female gender, left ventricular dysfunction, hyperlipidemia, double vessel disease and triple vessel disease, valvular disease and concomitant valve surgery were identified as risk factors for mortality in the postoperative period. More efforts should be directed towards preventing and controlling cardiovascular risk factors to decrease the prevalence and impact of CAD in our community.