Interest in professional competencies has been increasing in Poland for several years. This is effect of the various benefits of management on the basis of competencies. The main advantage seems to be the standardization of HR processes. The one of the most sought of competencies of employees, primarily managers, it is leadership. This led the author of the article to be interested in competencies leadership in the Polish army. The purpose of this article is therefore to present the assessment of leadership competencies Polish soldiers and the answer to the question of the importance of leadership in the profession of a soldier. Based on the literature shows the reasons why organizations focus on competencies, they are an example of the definition of competencies and their components. In addition, it defined the essence of leadership and describes the changes that affect the shape of modern leadership. To illustrate the leadership competencies of soldiers of the Polish army, we used its own research, conducted among officers representing the corps of senior officers who are acting as the position of commander. Method used for testing was a diagnostic survey, conducted using a questionnaire.