Shared leadership enables employees to develop positive feelings for their organizations and themselves. Especially, their devotional feelings and behaviours towards their organizations increase with the sharing of leadership. In this study, the shared leadership of the school and the organizational commitment levels of the teachers, their relationship with each other and the predictive status were examined. This study is a research within relational survey model. The data of the research were collected from 512 teachers in primary and secondary schools in Malatya districts of Turkey in the 2019-2020 academic year. The data were collected through the Shared Leadership Scale and the Organizational Commitment Scale of Teachers. For the analysis of the data, t-test, ANOVA test, correlation and regression analyzes were performed. According to the results of the research, shared leadership and organizational commitment levels in primary and secondary schools are high. There is a positively significant and moderate correlation between the shared leadership of the school and the organizational commitment of teachers. Shared leadership in primary and secondary schools positively and significantly predicts teachers' organizational commitment. For this reason, in order to increase the organizational commitment of teachers; it is important to create a sharing school life, in order to support teachers for the purposes of the organization and to include them in decision-making processes. According to the results obtained, it is recommended that young teachers with lower organizational commitment be given more duties, powers and responsibilities.