Although physical activity (PA) is an important and modifiable determinant of health, in Sweden only 15% of boys and 10%of girls aged 15 years old achieve the recommended levels of PA 7 days per week. Adolescents’ PA levels are associated withsocial influence exerted by parents, friends, and teachers. The purpose of this study was to describe parents’ experiencesof being a part of their adolescents’ empowerment-inspired PA intervention. A qualitative interview study was performedat a school in the northern part of Sweden. A total of 10 parents were interviewed, and the collected data were analyzedwith qualitative content analysis. Three subthemes were combined into one main theme, demonstrating that parents are oneimportant part of a successful PA intervention. The life of an adolescent has many options and demands that make it difficultto prioritize PA. Although parents felt that they were important in supporting their adolescent, a successful PA interventionmust have multiple components. Moreover, the parents noted that the intervention had a positive effect upon not only theiradolescents’, but also their own PA. Interventions aimed at promoting PA among adolescents should include measures tostimulate parent participation, have an empowerment approach, and preferably be school-based.