Historically, sport has been viewed as an apolitical space where organizers, managers, coaches, spectators, and sponsors expected athletes to focus solely on their performance and adhere to functionalist origins of the activity, including physical fitness benefits, character building, teamwork, and social entertainment. Despite these various positive attributes, the institution of sport does not operate in isolation from broader society. Instead, sport serves as a site where societal inequalities such as racism, sexism, economic stratification, and other forms of oppression are reproduced, exacerbated, and/or ignored. Throughout history, several African American athletes, sport scholar activists, sport institutions, and entrepreneurs have critically reflected upon this arrangement and courageously engaged in actions to promote social justice within and beyond sporting spaces. Recent actions by African American athletes across participation levels have raised questions about the term activism and how it is applied to certain actions. In an effort to foster a deeper understanding of this phenomenon, the purpose of this article is to present a typology that delineates different forms of African American sport activism. The proposed typology outlines five categories: (1) symbolic activism; (2) scholarly activism; (3) grassroots activism; (4) sport-based activism; and (5) economic activism. Implications for future engagement and research are discussed.