Abstract: Cardiac surgery caused the highest rates of PPCs with an estimated rate of up to 39.6% as compared to 31% in thoracic surgery. Determine the prevalence of PPCs among a sample of Jordanian post coronary artery bypass graft surgery patients and to explore the possible association between PPCs and some demographic variables. This study was descriptive, retrospective. Study sample included 150 files of patients with CABG. Data was collected through constructing a questionnaire. Data was analyzed through the use of SPSS Version 20. Chi-square was used to examine the relationship between variables. Significance was considered at alpha level <0.05. The prevalence of PPCs was 60%. Demographic variables were associated significantly with PPCs. Age was significantly associated with atelectasis (p = 0.000), pneumonia (p = 0.001), pulmonary effusion (p = 0.012), pulmonary edema (p = 0.006) and pneumothorax (p = 0.034). The rest complications did not show any significant variation with age.gender associated significantly with pulmonary embolism (p = 0.008) and females are more likely to develop pulmonary embolism compared with males. BMI was associated significantly with atelectasis, pulmonary effusion, pulmonary edema and bronchospasm. The results of the present study showed that the prevalence of PPCs was 60%. Demographical variables including age, gender and obesity were associated significantly with some PPCs.