Objectives: To identify patterns of exercise behaviour, attitudes towards exercise, barriers and enablers of exercise for people living with Pulmonary Hypertension (PH). Accessibility of rehabilitation services from a patient perspective was also explored. Methods: a voluntary, international survey of people living with PH was conducted, with mixed quantitative and qualitative data collection, in an online and paper format. Results: Data from 187 participants in 19 countries were included in the analyses. 52% (95/183) of people with PH reported that they attempted to engage in regular physical activity. This was less than the proportion who did so prior to diagnosis (61%, 112/184, p=0.006), and was accompanied by uncertainty and anxiety about exercise. 63% (113/180) of the cohort reported experiencing previous adverse events whilst exercising, which was associated with a greater likelihood of ongoing exercise concerns and anxiety. Fear, frustration and uncertainty about exercise were noted as common barriers to engaging in exercise with PH. Other barriers to exercise included intrinsic factors such as debilitating breathlessness and fatigue, and external factors such as cost and access to appropriate services. Most respondents (76%, 128/169) did not have access to a multi-disciplinary rehabilitation service, although an overwhelming majority (92%, 159/172) reported this would be helpful. Respondents rated education; a supervised, structured exercise program; and psychology input as the most important components of a multi-disciplinary rehabilitation service for PH. Conclusion: Health professionals must work together with consumers to co-design rehabilitation services that will facilitate exercise and increased activity for people living with PH.