This study aims to examine and analyze the effect of Transformational Leadership Style, Organizational Culture, and Motivation on Employee Performance in the Human Resources Development Agency. This type of research is quantitative, with a total population of 468 employees, the determination of the number of samples do use the Slovin formula with the results of the sample calculation of 99.78 or 100 people. The results of this study indicate that the Transformational Leadership Style dimension does not significantly influence Employee Performance, Organizational Culture, and Motivation has a positive and significant influence. The Transformational Leadership Style, Organizational Culture, and Motivation simultaneously have positive and significant impacts on Employee Performance. Based on these results, it can suggest that the organization can recommend and compile transformational leadership training modules both at the official and staff level. Besides, it is necessary to increase the capacity of employees in each Work Unit in the form of FGDs related to transformational leadership. This study is limited to one Human Resources Development Agency. For further studies, it would be better if this research conduct for several Organizational Units in a Ministry / Institution.

Keywords : Employee Performance, Transformational Leadership Style, Organizational Culture and Motivation.