Leadership for social justice is a goal and a challenge for the National Pedagogical University (UPN) in Mexico City. The purpose of this study is to examine the role of UPN directors in the context of leadership for social justice. The focus of the study is on those who are responsible for preparation and continuous training of teachers (García, 2006; Jiménez, 2009). The research design was qualitative based on subjective interpretation from the meanings generated by the participants (Bisquerra, 2014). It describes and analyses the experiences of five directors of school units through in-depth interviews where both the person and the environment are of interest. The findings were reported in the voices of the directors. Supportive factors included teamwork through building consensus and recognition of achievements, commitment to students, and critical awareness. The obstacles to leadership included the quality of facilities, vertical management, job uncertainty, the challenging profile of the students, and inter-institutional relations. This study of leadership of directors of UPN has the potential to strengthen the management of the UPN school units and enhance institutional objectives to promote inclusion and guarantee the right to education. It also has implications for the study of social justice leadership in other educational contexts.