Having a sense of social inclusion and belonging, typically characterized by our personal relationships and community participation, is the central essence of life for most people, yet it remains elusive for many people with intellectual and developmental disabilities (IDD). This article summarizes the work of a diverse group of researchers and advocates to propose 6 big-picture, equity-based goals to drive future research in the field: (1) understanding the role of intersectionality, (2) understanding intimate relationships, (3) promoting formation of communities of care to support social inclusion, (4) understanding life course trajectories of social inclusion, (5) understanding social inclusion in virtual spaces, and (6) understanding how to promote social inclusion in the entire research process.