Chronic nonmalignant pain is a major health complaint. Although chronic pain often has a major impact upon patients’functioning, not all patients with chronic pain suffer or are disabled to the same extent. Several health psychological models have been developed to explain this variability. For example, the Fear-Avoidance Model predicts that pain-related catastrophizing (i.e., the degree to which pain is perceived as highly threatening), fears and avoidance behaviours are related to higher levels of pain-related disability. Although worthwhile, these illness perception models do not take into account the broader stigmatizing social context in which chronic pain is experienced. The current project is one of the first to investigate stigma related to chronic pain, drawing upon an interdisciplinary approach involving health psychology, sociology and computer sciences. The sociological approach that we propose is a multilevel approach in which the intra-individual factors, the inter-individual factors and the institutional factors are incorporated, in order to get insight into both informal social processes (e.g., relationships with family members, friends,…) and formal social processes (e.g., relationships with healthcare practitioners). Moreover, the project will use an innovative methodology borrowed from computer sciences to capture the interpersonal context of stigma in individuals with chronic pain, i.e. social network analyses.