Community psychology is concerned with the relationship between individuals and social systems in community contexts, but the field has under-explored the role of religious organizations in the lives of individuals with intellectual disabilities. Worldwide, most people identify with a religion, and congregations serve as important mediating structure that creates a sense of community and provides linkages between individuals and society. There may be significant benefits to religious participation, including greater life satisfaction, health, and quality of life. Such benefits may be especially important to individuals with intellectual disability who generally experience poorer outcomes. However, we know very little about the inclusion of persons with intellectual disability in faith communities, particularly from the perspective of faith leaders who play pivotal roles in transmitting values and making decisions for their community. The present dissertation aimed to address gaps in knowledge about how religious leaders make meaning of intellectual disabilities and their perspectives toward individuals with intellectual disabilities. Catholic priests, parochial vicars, and deacons were interviewed to address three overarching research questions, viz. (a) What types of experiences, in and outside of faith communities, do religious leaders have with individuals with intellectual disabilities?; (b) What are the beliefs of religious leaders toward the involvement of individuals with intellectual disabilities within faith communities?; and (c) How does religion inform the understanding of intellectual disabilities among religious leaders?