Abstract: Head departments at private universities in Indonesia are faced with a major challenge regarding the high expectations of guaranteed satisfying services they have to provide which predicted can cultivate and develop the commitment of the students. Realizing the important of this issue, it is necessary to investigate the effect of head department’s servant leadership, as one of the essential factors, on students’ commitment. This quantitative study used descriptive and simple regression analysis research design, wherein 212 second semester university students were selected as the respondents of the study through convenience sampling method. A two-part questionnaire, based on the theories of Servant Leadership and Organizational Commitment, was used in gathering data. As an overall, the results revealed that the extent of servant leadership practiced by the head department was ‘high’ (M = 4.09), and the students’ commitment (Mean = 4.14) was ‘high’. This study proved that head department’s servant leadership (r=.831, p=.00 < 0.05) significantly affected students’ commitment. It means that students’ high commitment is caused by head department’s major effort in fulfilling students’ hope and expectation through his servant leadership. Therefore, it is recommended that head department should practice servant leadership in order to foster the sense of commitment of the students for the benefit of the students themselves, and the institution as well.