According to Jay Coakley, author of Sports in Society: Issues and Controversies, sports are institutionalized, competitive activities that involve rigorous physical exertion and/or the use of relatively complex physical skills by participants motivated by personal enjoyment and/or external rewards. Gender includes attitudes, feelings, and behaviors culturally associated with people’s biological sex. In this entry, the relationship between sport and gender is described with a focus on feminist, queer, and intersectional theory. The entry concludes with a brief discussion of potential guidelines for working with lesbian, gay, and bisexual (LGB) sport participants.