Many protocols assessing social communication skills of adolescents with autism spectrum disorder (ASD) are based on behavioral observations. It has been suggested, however, that social cognition encompasses processes underlying observable behaviors. Such processes include personal constructs, which can be assessed using repertory grids. Personal constructs of five adolescents with ASD with average or above average intelligence and receptive and expressive language skills were explored using repertory grids in this study. With visual structure and verbal scaffolding, all participants successfully engaged in the repertory grid process. Data suggest participants had well organized, complex construct systems, a significant understanding of social roles, and were interested in social interactions. Repertory grids may provide additional person-centered information for assessing social communication skills in ASD.