The dynamic processes of change regarding economic, technological, and political developments that leaders face today present current and future challenges. Leadership skills play an increasingly crucial role in this context. This study focuses on the competencies of a leader and divergent leadership approaches. It explores the extent to which leadership theories and styles encompass leadership competencies and the significance attributed to them. For this purpose, leadership competencies are identified and explained. These then serve as the criteria by which the presented leadership theories and styles are analyzed. The aim of this written presentation is to examine the occurrence and extent of leadership competencies.