The purpose of this study was to examine three forms of race-related stress (i.e., cultural, institutional, and individual) and six racial identity dimensions (i.e., Pre-Encounter Assimilation, Miseducation, and Self-Hatred, Immersion-Emersion Anti-White, and Internalization Afrocentricity and Multiculturalist Inclusive) as predictors of involvement in African American activism in a sample of 185 African American undergraduate women and men. When examined concurrently, these race-related variables accounted for more than one fourth of the variance in involvement in African American activism scores. Results indicated that cultural race-related stress, Immersion-Emersion Anti-White, Internalization Afrocentricity, and Internalization Multiculturalist Inclusive were the only significant and unique positive predictors of involvement in African American activism. In addition, Internalization Afrocentricity attitudes mediated the cultural race-related stress -> activism link and both Immersion-Emersion Anti-White and Internalization Afrocentricity attitudes mediated the institutional race-related stress -> activism link.