Research shows heterogeneity in experiences of social contact and social networks in autistic adults. In this study, we aim to identify clusters of social support networks and investigate associations of clusters with mastery, quality of life, and autism characteristics. Autistic adults (N = 381; 45.7% female) aged between 30 and 90 years completed questionnaires on social support characteristics, mastery, autism characteristics, and quality of life. A two-step cluster analysis was used …