In this study, it is investigated whether there is a relationship between perceptions of teachers working at primary and secondary schools about school culture and conflict management styles of school directors; and whether school culture can predict conflict management styles of school directors significantly. This study is in the model of relational survey. The population of the study consists of a total of 757 teachers 37 of whom are primary 41 of who are secondary school teachers working in the province of Şırnak in 2014-2015 education year. In the study conducted, in order to determine school culture with regard to teachers’ perceptions, “School Culture Scale” developed by Şimşek (2003) and in order to determine directors’ conflict management styles, “ROCI II” often named in literature as “Rahim Organizantional Conflicting Inventory II” are used. This scale developed by Rahim (1983) was translated into Turkish by Gümüşeli (1994). Data collected were analysed in SPSS software program. According to the primary ad secondary school teachers’ perceptions, it is found outb that in general, there is a relation between confilict management style of directors’ integration sub-division of school culture and in positive direction and at high levels; on the other hand; between conflict management styles of sub-division of appeasement, avoidance and reconciliiation, and organizational culture in positive direction and in mid levels; and between conflict management styles of sub-division of dominating and organizational culture in negative direction and mid levels. However, in the end of the regression analysis carried out, it is found out that school culture can significiantly predict all school directors’ conflict management styles.