This chapter is a critical literature review of recent social science research describing and analyzing the participation of Christian churches in various phases of the human rights movement in Latin America. Spanning the period from 1964 to the present, such human rights activism took place in the contexts of authoritarian rule, civil war, democratic transitions, and the consolidation of democracy. The chapter focuses on the influence of Christian church leaders, laity, organizations, and resources on the origins, growth, and maturation of human rights-oriented social movement organizations (SMOs). Drawing on Douglas McAdam, Sidney Tarrow, and Charles Tilly’s work on political process theory, this literature emphasizes the invaluable role of religious organizations in providing space, resources, protection, and framing to nascent human rights movements in the region during the 1960s-70s. Even so, the literature also grapples with the diverse range of political stances taken by Christian church leaders and activists, both within and across national-level cases. With the maturation of the movement and the transition to democracy, political process theory remained relevant, but failed to capture some of the key challenges and opportunities experienced by Christian activists, as opposed to social activists in general. Thus, scholarship shifted focus to organized religion’s capacity to build social capital and sustain meaningful Christian social and human rights activism.