Öz
This research aims to investigate the effect of leadership styles of school principals on organizational health. Causal-comparative research model was used to analyze the relationships between leadership types and organizational health. For data collection, a Likert type Multifactor Leadership scale questionnaire and Organizational Health scale were administered to 151 teachers working primary and secondary schools in Osmaniye city. Data were analyzed by using multiple regression analysis method. Findings of this study indicated significant relationships between school principals' leadership styles and health of schools, that leadership style of school leaders influence organizational health level of a school. Transformational leadership style was also found out to be closely related to a healthy school environment while transactional leadership style is negatively correlated with organizational health. Individual consideration, inspirational motivation, idealized influence, and intellectual stimulation sub-dimensions are found to effective in the formation of organizational health. In the light of the findings, some recommendations were also presented.