Wellbeing is a well-used but ill-defined term in youth research. This paper describes research that explored the ways in which young people and youth workers define wellbeing. The findings suggest that both groups agreed that wellbeing was a multidimensional concept; however, the young people were more likely to consider wellbeing to be influenced by individual factors, such as the state of their relationships, while the youth workers were more likely to emphasise the importance of structural factors. The different focuses of young people and youth workers may mean that each group works toward different but not necessarily contradictory goals. In fact, the goals may compliment each other. (Contains 3 tables.)