PURPOSE: This study was performed to identify how internalized stigma, anger expression style, and mental health service satisfaction impact on the self-esteem of inpatients with schizophrenia. METHODS: For this descriptive correlational study, 191 inpatients with schizophrenia participated. They had been admitted to one of six mental hospitals in three areas of South Korea. Data were collected from August 1 to November 30, 2016 using self-report questionnaires and data were analyzed using t-test, one-way ANOVA, Pearson correlation coefficients, and stepwise multiple regression with IBM SPSS 22.0. RESULTS: The significant predictors of self-esteem in inpatients with schizophrenia were internalized stigma, anger expression style, and mental health service satisfaction, explaining 36% of the variance in self-esteem. The most significant predictor of self-esteem in inpatients with schizophrenia was internalized stigma. CONCLUSION: Study findings suggest that a significant reduction in the internalized stigma of inpatients with schizophrenia increases their self-esteem. It is also, necessary to improve adaptive anger expression style and mental health service satisfaction.