Background: Although stroke has been consistently reported as one of the three leading causes of morbidity and mortality in the past few years in Ethiopia, there is a paucity of data regarding to stroke treatment outcomes and associated factors. Hence, this study was aimed to assess management practice, and treatment outcome and its associated factors among hospitalized stroke patients.Method an institutional based cross sectional study was conducted among 111 hospitalized stroke patients in the medical ward of Ambo University Referral Hospital(AURH), who had been hospitalized for the last three years (March 30/2016- May30/2019). All patients diagnosed with stroke and hospitalized in the medical ward of AURH were included in the study. Data were analyzed with SPSS version 25.0 statistical software. Bivariate and multivariate binary logistic regression analysis was conducted to identify the predictors of poor treatment outcome.Result The present study showed that ischemic stroke was the most prevalent (80.1%) form of stroke diagnosed in the study setting. Nonetheless, 18.2% of patients were diagnosed with hemorrhagic stroke. Among 111 study participants, 69 (62.2%) patients had good treatment outcome. From 42(37.8%) study participants with poor treatment outcome, 18(42.8%) were dead and 12 (28.6%) were with disability and left against medical advice on self and family request while the remaining 12 (28.6%) were referred to other higher health facility. Social history (substance abuse P=00.046, AOR=2.684, 95%CI 1.091-6.604), age (P=0.026, AOR= 3.256, 95%CI = 1.145-9.260) and chief compliant (P=0.009, AOR=0.254, 95%CI=0.091-0.708) were the predictors of treatment outcome among hospitalized stroke patients. Other variables like types of stroke, co-morbidity, and others did not show significant association with treatment outcome.Conclusion The present study showed that ischemic stroke was the most predominantly diagnosed type of stroke in our setting. Acetyl salicylic acid and ACE inhibitor based regimens were frequently used in the management of stroke and hypertension, respectively. Nearly one third of the study participants had good treatment outcome. Nonetheless, death was reported in 16.2% of hospitalized stroke patients in the study setting. Being older and substance abusers, and the presence of hemiparesis during the initial hospital admission were significant predictors of poor treatment outcome.