Coarctation of the aorta, a well known congenital cardiovascular defect, can be recognized in most instances by simple findings of physical examination. This condition shortens life if untreated, but it can be corrected surgically to render the patient functionally normal. It seems relatively rare in Asian. We experienced two cases of coarctation of the aorta which were treated surgically. The first case was 17 years old male with juxtaductal type of coarctation of the aorta. The second was 7 years old female with preductal type of coarctation of the aorta and combined anomaly of PDA and she had been in congestive heart failure. In both cases, coarctated segments of the aorta were resected and end to end anastomosis were performed. In the second case, PDA was closed by division before resection of the coarctated segment. The postoperative courses were uneventful. They discharged 2 weeks postoperatively without any complications. Blood pressure was nearly normalized at the time of follow up check.[KTCS 1978;1:75-80]