It is very important to perform leadership activities e%ectively according to business conditions today. Leaders are people who can make decisions using their knowledge, courage and experience and create strategies for the continuity of the organization. Leaders create a new structure and procedure for the group when setting goals, directing and in&uencing members. A charismatic leader has the ability to in&uence others with his self-con- 'dence, courage, speech and persuasion ability. In this study, it is aimed to reveal the mediating role of organizational citizenship behavior in the e%ect of charismatic leadership on job satisfaction. For this purpose, the leadership of employees, managers, job satisfaction levels and organizational citizenship behavior perceptions of employees in production enterprises have been determined. (e research was conducted between 25.04.2024- 20.07.2024 in production enterprises in various sectors located on the Istanbul/European Side. Survey questions were asked to the participants (n:404) face-to-face and online. (e questionnaire form has been prepared based on the studies conducted in the literature. (e scale questions are related to the demographic characteristics of the participants, charismatic leadership, job satisfaction and organizational citizenship behavior. (e obtained data were tested by validity, reliability tests, factor, correlation and regression analyses with the SPSS program. As a result of the research, a signi'cant and positive relationship between the variables was found. It has been concluded that charismatic leadership has a partial intermediary role of organizational citizenship behavior in its e%ect on job satisfaction.