Aneurysm of sinus of Valsalva is a rare cardiac abnormality with congenital origin in most of the cases. If it is located in the right coronary sinus, it usually ruptures into a right heart chamber and frequently a ventricular septal defect (VSD) coexists with this condition. Early diagnosis and immediate surgical treatment can save the patient’s life in most cases. All the 3 cases reported in this series had aneurysm of right sinus of Valsalva with associated VSD and mild degree of aortic regurgitation (AR). Two of the cases ruptured aneurysm into the right ventricle. Trans-esophageal echocardiography was used to confirm the diagnosis and all three showed good results with surgery.