Objective: Neonatal cholestasis is a condition that begins in the first months of life and is accompanied by a direct increase in bilirubin and jaundice as a result of deterioration in bile production or excavation. Early and accurate diagnosis is important for treatment success and prognosis. In this study, we aimed to examine the demographic characteristics, etiological factors, clinical signs, treatment and final conditions of patients monitored for neonatal cholestasis and to determine the etiological factors of liver transplant patients. Methods: Patients who were diagnosed with cholestasis in the neonatal period (<6 months) and followed up in our clinic for at least six months between January 2005 and January 2018 were included in the study. The clinical course and final status of the patients were recorded retrospectively. Results: The median age of onset of jaundice in 131 patients (61.1% male) enrolled in the study was 6 days (range: 1-180 days). Ninety-nine (75.6%) patients were in the intrahepatic cholestasis group, and 32 (24.4%) were in the extrahepatic cholestasis group. In the intrahepatic cholestasis group, total parenteral nutrition-related cholestasis (27.3%) was the most common, and biliary atresia (71.9%) was the most common in the extrahepatic cholestasis group. Other main reasons were systemic (19.1%), metabolic (12.2%), hereditary cholestatic diseases (9.9%) and infectious (7.6%) causes. The median time of Kasai portoenterostomy in patients with biliary atresia was 64 days (range: 28-180 days). The highest (44%) mortality rate was in the patients with systemic disease-related cholestasis. Liver transplantation (n=21, 16%) was the most frequently performed in patients with biliary atresia. Conclusion: Early diagnosis and timely treatment are very important for the optimal prognosis in neonatal cholestasis. The presence of acholic stools, maturity, early onset of jaundice and high gamma-glutamyl transferase levels should suggest biliary atresia. Early surgical treatment is warranted once the diagnoses was made, and liver transplantation is a treatment method that increases survival rate in these patient groups.