In response to numerous highly publicized cases of athlete maltreatment, sport organizations have developed prevention and intervention strategies under the umbrella term of Safe Sport; however, confusion exists about what it does and does not encompass. To better understand what Safe Sport encompasses, this study sought to develop a conceptual framework of Safe Sport, informed by the perspectives of various stakeholders in sport. Using a social constructivist grounded theory approach, semi-structured interviews were conducted with forty-one participants, including athletes, coaches, sport administrators, and researchers. The results are interpreted to suggest that participants’ understanding of Safe Sport are informed by three overarching themes: environmental and physical safety, relational safety, and optimising sport, all of which are viewed as continuously evolving relative to the ever-changing context of sport and broader society. Recommendations are made to optimise sport experiences and thus prevent physical and psychological harms through a safeguarding approach that prioritizes the promotion of human rights.