Children with intellectual disabilities (ID) or autism spectrum disorder (ASD) are considered unable to grieve or understand the concept of death and might not receive grief support after the death of a beloved person; hence, they are at risk of developing complicated grief. This scoping review identified existing grief support for children with ID or ASD. Searching seven databases yielded 514 records; six studies met the predefined inclusion criteria. The six studies identified grief support, including discussions, participation in death rituals, family support, stories, and professional interventions. The support could be organized into three levels, micro, meso, and exo, overlooking the macro level completely, indicating that grief support for these children tends to be irregular and inconsistent.