This chapter explores how transformative leadership for social justice can support the development of inclusive education. Inclusive education broadly refers to a situation where all students, including students with disability, have the opportunity to participate fully in education on the same basis as their peers. Achieving inclusive education has proven to be a significant challenge across education systems, with research and government inquiries pointing towards the continued exclusion of students with disability from mainstream schools. This chapter provides a conceptual framework that suggests the use of transformative leadership tenets to build the collective efficacy of school staff for the implementation of inclusive practices. The chapter commences with a review of the literature, including the key theoretical underpinnings of inclusive education, transformative leadership and collective efficacy. Drawing on this literature, it introduces a conceptual framework, Collective Efficacy for Inclusion, which can be used to understand the multifaceted nature of work schools engage in to embed social justice principles and practices. Exploring the interplay between these three concepts enriches our understanding of how school leaders can effectively challenge systemic injustices and foster inclusive environments. Moreover, this chapter provides starting point for education leaders seeking to cultivate socially responsible leadership practices and promote equitable outcomes for all students including students with a disability. The chapter provides vignettes from Australian schools to illustrate how the Collective Efficacy for Inclusion conceptual model can be fostered through transformative leadership. The chapter also illustrates how socially just leadership practices can shift mindsets, build trust, and cultivate a shared moral purpose among staff to ensure that inclusion is a collective, rather than individual, responsibility. The chapter concludes by discussing the broader implications for leadership preparation and practice, highlighting how fostering collective efficacy supports the achievement of equity, inclusion, and social justice within and beyond school contexts.