Findings are presented from communication intervention research in three areas related to deafness with disability (DWD): D/deaf and hard of hearing (DHH) with (a) intellectual disability, (b) autism spectrum disorders, (c) deafblindness. Early identification, prevalence, theoretical perspectives, and evidence-based practices are discussed. Developmental theory, behavioral theory, and social-interactionism theory undergird many assessment and intervention practices in communication. The tri-focus framework and the four aspects of communication are useful frameworks. While communication research is a relative strength in the deafblindness field, a dire need exists for research in the other two DWD areas. Across all DWD areas there is a need for interventions addressing receptive language. Effective communication and language intervention can only occur when children who are DWD are identified early, placed in individually suitable classrooms with appropriately prepared professionals, and provided with services that build on their strengths and meet their needs.