In this study, the relationships between high school teachers' perceptions of spiritual leadership, organizational culture, organizational silences and academic success of the school were tested. The population of the research, which is designed with causal model, consists of a total of 2,791 teachers working in public high schools in a province in Central Anatolia, whereas the sample consisted of 457 teachers working in 24 high schools determined by the proportional cluster-sampling method. The primary data of the research were obtained using the Spiritual Leadership Scale, School Culture Inventory and Organizational Silence Scale, whereas the secondary data were obtained using the average scores of the school from the Higher Education Entrance Examination (YGS) and the Undergraduate Placement Examination (LYS). The data were tested using correlation analysis, multiple regression analysis and structural equation model. The findings of the research showed that teachers' perceptions about the spiritual leadership behaviors of the principals affected their organizational culture perception positively; the perception of the organizational culture affected the school's YGS average score positively and LYS average score negatively.