Support group (SG) participation has been shown to be effective in many chronic medical conditions. The evidence for integrating SG into Pulmonary Hypertension (PH) care and its effect on quality of life (QOL), physical and psychological well-being is limited. Objective: We sought to assess the effect of support group participation on QOL in patients diagnosed with PH and their caregivers. Methods: The emPHasis-10 questionnaire (a tool validated for QOL assessment in PH) was used to evaluate the effect of support group participation. Additional demographic and health-related quality measures were examined. Results: 165 subjects were enrolled in the study; 122 (74.4%) were patients with PH, 41 (25.0%) were their caregivers, and 2 (0.02%) did not respond. The cohort was predominantly female (n=128, 78%), Caucasian (n=10, 61%), and the principal self-reported classification of PH was World Health Organization (WHO) Group 1 (n=85, 51.8%) and the self-reported NYHA Functional Class was II and III (n= 43, 57.3%). Most participants (n=118, 71.5%) attended support groups and of them, a majority (n=107, 90.6%) stated it helped them. There was no difference in QOL as assessed by emPHasis-10 scores with SG participation (median score 30 vs 32, p=0.387). There was self-reported improvement in understanding condition better including procedures such as right heart catheterization, medication compliance and confidence in self-care (p<0.05). Using multivariate logistic regression, baseline variables that were independently associated with emPHasis-10 scores for the entire cohort included knowledge of NYHA-FC (odds ratio 1.919, 95% CI 1.004-3.67, p=0.04) and greater distance traveled to visit PH physician (odds ratio 1.391, 95% CI, p=0.05). Conclusions: Support group participation does not improve quality of life as assessed by emPHasis-10 scores but improves other meaningful health-related quality outcomes.