This article contributes to the evidence base on the significance of context in enacting social justice leadership. It draws on data from the International School Leadership Development Network of 20+ countries who adopted a common qualitative approach involving interviews with principals identified as being social justice leaders. The article focuses on four case studies of Irish principals in varying primary elementary school contexts. Findings reveal local contextual features significantly impacted principals' perceptions, actions, and self-efficacy as social justice leaders. While the actions and motivation of the principals is similar, two of the principals, working in school contexts where the values and norms are not consonant with broader society, appear to lack confidence in their practice of social justice leadership. This article extends the existing evidence base by arguing for enhanced critical consciousness of all stakeholders related to the personal, institutional and community contexts in schools. It recommends a more flexible and iterative process of policy development to facilitate a more nuanced understanding of the cultural and ideological struggles in schools. Finally, it calls for governments and policy makers to take responsibility for and support disadvantaged communities as education alone cannot solve the issue of inequity.