The main purpose of this study is to determine the relationship of the school administrators' leadership styles with resistance to change and organizational dissent based on teachers' perceptions, and also to reveal whether the leadership styles of the administrators predict resistance to change and organizational dissent. After defining leadership styles, their relationship with organizational dissent and resistance to change was addressed and a survey was conducted in line with this purpose. The survey was applied to 505 teachers working in the central districts of Mersin in the 2018-2019 academic year. In the study, it was concluded that there is no relationship between autocratic leadership and the sub-dimensions of organizational dissent. While democratic and transformational leadership styles have a positive significant relationship with horizontal dissent, they have no significant relationship with vertical dissent. Democratic and transformational leadership styles do not predict vertical dissent significantly, but they predict horizontal dissent significantly.