Background: The increased incidence of cardiovascular disease between patients nowadays led to upsurge in the number of cardiac operations. After coronary artery bypass surgery, most patients remain free of symptoms for up to 15 years. The surgery also reduces the risk of heart attack and improves survival. Objective: to determine the predictors and outcome of coronary artery bypass surgery in patients attending the cardiac center in Arar, KSA all over the study period. Methods: The current study is a cross sectional study conducted during the period from September 2017 to March 2018. The current study included 72 individuals attending the cardiac center in Arar City. Collecting patients' data was conducted through interviewing the patients included in the study and reviewing their medical files. A predesigned questionnaire was used for data collection. Results: We found that 81.9% of cases were males, 61.1% aged from 30 to 39 years old, 34.4% of cases have a myocardial infraction as a clinical diagnosis before the operation, 25% had angina pain, and 50.0% were smokers. Hyperlipidemia, chronic kidney disease, and chronic obstructive lung disease were found in 59.7%, 83.3% and 77.8% respectively. There were 41.6% who had postoperative arrhythmia, 13.9% had bacterial infection in the site of operation and another 13.9% had hypotension, 11.1% re-operated due to bleeding, and 6.9% got  postoperative acute myocardial infarction. After 6 month of the operation, 69.4% of cases were quite good while recurrence of chest pain found in12.5%, heart failure in 2.8% and 8.3% died. There was significant association between outcome of cases after 6 months of operation and patients age (P<0.05) and all the dead cases were males. Conclusion: Our findings indicated that, among cardiac patients attending the cardiac center in Arar, KSA, the preoperative characteristics are suggestive of 30 to 39 years old males with myocardial infraction, angina pain, smokers, have hyperlipidemia, chronic kidney disease, and chronic obstructive lung disease is undergoing coronary artery bypass surgery. The death rate was low and 69.4% of cases were quite good.