Background: Chronic liver disease (CLD) is a major cause of morbidity and mortality all over the world, it accounts for about 2% of all deaths in Europe (170,000/year) with increasing mortality rates in several countries. Vitamin D deficiency has been reported highly prevalent in chronic liver disease patients. The lower level of vitamin D is associated with severity of CLD, mortality and increased risk for infections. So, the aim of the present study was to evaluate the serum vitamin D status in patients with CLD.Objective: To detect the serum Vitamin D status and its correlation with severity in children with CLD.