Electrocardiographic features of the Woljf-Parkinson-White syndrome may be seen in normal individuals and in those with congenital or acquired heart disease. Predisposition to tachyarrhythmias and its misinterpretation are common. In this report a case of Wolff-Parkinson-White syndrome in a 25 year old Malay male who presented with cardiac arrhythmias is described. Echocardiographic findings and the role of echocardiography are discussed.