When researching sport and social entrepreneurship, several ethical dilemmas may arise. The authors highlight the importance of being aware of these. By examining four sport-related cases, this chapter explores some of the ethical dilemmas that researchers might face. The authors conclude that the entrepreneurs may prefer not to be anonymous informants in research ventures, that they may become part of the brand and the branding process, and that the researchers, on their part, have to navigate in different sectors of society and thus run the risk of being accused of becoming accomplices in the venture.