Organizations aim at achieving their objectives with their personnel. One of the personnel of a school, which is also an organization, is the assistant principal. Assistant principals are the personnel managing the school with the school principal. This study aims at presenting how assistant principals interpret their roles and jobs in managing the school by considering Henry Mintzberg's opinions on the roles and jobs of managers. This study was carried out with a qualitative research method and phenomenological pattern. The data resource of this study was the interview. Twenty assistant principals participated in this study. There were two themes as a result of this study. These are the roles and jobs of assistant principals. Assistant principals have many roles and jobs in the school that are interrelated and complementary. These are bureaucratic and they affect education. However, this is not something that assistant principals want. In addition to this, it was seen that the data collected from this study and the opinions of Henry Mintzberg generally supported each other. The main reason for not supporting each other is thought to be the scope of the current study. The last section of this study included recommendations.