The benefits of inclusive practices for students with intellectual disabilities have been demonstrated in several countries; however, large-scale inclusive practices remain elusive. Having a clear understanding of how researchers define the terms inclusion and intellectual disability would support more cross-cultural collaboration and facilitate the generalization of practices. Addressed in this paper is the question of what themes, if any, exist in conceptualizing inclusion and intellectual disability across the peer-reviewed research of six countries, three of which have been identified as highly inclusive and three that have been identified as minimally inclusive. These findings may be used to further research into barriers and opportunities for inclusive practices for students with intellectual disabilities.