OverviewPerfect performance, flawlessness, and the perfect body are revered in sport, dance, and exercise. As such, sport, dance, and exercise provide ideal domains in which to study perfectionism. This chapter provides an overview of research that has examined multidimensional perfectionism in these domains. We place particular emphasis on the most recent research in this area and provide suggestions to guide future research. It will be argued that perfectionism is a complex characteristic with particular relevance in sport, dance, and exercise. In addition, in its various guises, perfectionism can be problematic, beneficial, and also ambivalent with regards to motivation, well-being, and performance. To better understand the effects of perfectionism in sport, dance, and exercise, we call for research that adopts longitudinal designs, examines moderating factors, develops and refines measurement tools, and focuses on the influence of perfectionism among exercisers.