Purpose:The performance of an organization's members and its results root in an ethical organizational culture. One of the most critical factors that promote the organizational culture and develop the news agencies is " leadership style." Accordingly, the present study aims to evaluate the impact of leadership style on organizational culture in news agencies under the Ministry of Culture and Islamic Guidance. Design/Methodology/Approach: The statistical population includes all employees of news agencies governed by the Ministry of Culture and Islamic Guidance, who were 500 people. Using Cochran's formula and a simple random sampling method, 217 people were selected as a statistical sample. A questionnaire was used to collect the data, and they were analyzed using SPSS software. Findings: The descriptive results of the research showed that the organizational culture average is 74.6%, leadership style average is 66.8%, organizational behavior average is 65.1%, individual behavior average is 52.9%, and internal intention average is 70.9%. Practical Implications: The inferential results of the study also showed that the relationship between leadership style and its dimensions (organizational behavior, individual behavior, and internal intention) with organizational culture is statistically significant. Also, the variables of organizational behavior, individual behavior, and internal intention (as dimensions of leadership style) were significantly effective in the regression model of organizational culture, which could explain 45% of the changes in organizational culture, from that the effect of organizational behavior was more than the other two variables. Originality/Value: This study confirms the positive effect of leadership style on organizational culture in news agencies under the Ministry of Culture and Islamic Guidance, which can improve the working situation.