This study aims to explore the leadership style and organizational communication pattern in the Converting Department, PT. IPP, are related. The leadership elements described are at the general manager and manager levels. In addition, organizational communication behaviors occur between the areas of the Converting Department's organization. The research method used is descriptive and qualitative methods. The data used are primary and secondary data collected through observation supported by interviews, library research, and document analysis. Data and information obtained from the employee population of Converting Department, PT. IPP, with as many as 22 informants consisting of the employee from each level of position that considered representing the total population of 356 persons. Leadership style at the Converting Department, PT. IPP, is centered on characteristics of existing leaders, with one individual having an exploitive-authoritative leadership style, two having a benevolent-authoritative leadership style, one has a consultative style, and one has a participative style. The most dominant leadership style is exploitive-authoritative because it is attached to the top leader. The existing leadership style is not quite ideal to face challenges in the future. For internal organizational communication, patterns occur either downward communication, upward, horizontal and cross-channel.