The purpose of this study was to investigate the role of grandparents in the communication development of children who are deafblind. The two-tiered study was conducted through State Projects for Deafblind Children in Arkansas, Mississippi, and Tennessee with 143 parents and 80 grandparents. The grandparents identified as "most involved" provided information about factors that influence their levels of involvement. The results suggest that maternal grandparents are the most involved. A needs analysis in areas of communication, nurturing, and school indicated the need for grandparents to be included as participants in developing communication plans.