Background: Sudden death (SD) is one of the most important problems in medicine. More thanrn40% of patients die suddenly, mostly in an out-of-hospital setting. The precise prevalence ofrnsudden cause of death (SD) in Ethiopia is poorly investigated, especially in young patients. Thisrnprecludes evaluation of the Problem and determination of possible prophylactic solutions.rnObjective; The aim of this study was to evaluate the magnitude and Cause of out of hospitalsrnsudden death in autopsy studies in selected governmental hospitals of Addis Ababa, Ethiopiarnfrom January 1, 2014 to October 31, 2017 rnMethods: Retrospective study was conducted from Registry book on the magnitude and Cause ofrnsudden death in autopsy studies of selected governmental hospitals of Addis Ababa, Ethiopiarnfrom January 1, 2014 to October 31, 2017. Data was collected from police reports aboutrncircumstance of death and pathological features were analyzed by autopsy. Data was entered andrnanalyzed using SPSS version 21 and P value