DescriptionBias against higher body-weight individuals is a significant social problem. It is pervasive and associated with numerous negative psychological, social, physical, and behavioral consequences for those who experience it (see Puhl & Suh, 2015; Puhl et al., 2015). The internalization of negative weight attitudes (i.e., self-directed stigma) is also associated with increased psychological distress (e.g., anxiety, depression) and disordered eating (O’Brien et al., 2016). Given the aforementioned negative consequences, reduction of these negative attitudes is warranted. The current dissertation tested the effectiveness of three different theory-based weight bias reduction strategies: exposure to counter-stereotypic higher body-weight media models (study one), counter-stereotypic focused mental imagery (study two), and indirectly through a body gratitude exercise (study three). Results for study one indicated that participants in the counter-stereotypic video condition did not report significantly lower implicit or explicit weight bias when compared to participants in the neutral video condition. Results for study two indicated that participants in the counter-stereotypic mental imagery condition reported significantly lower negative weight attitudes when compared with participants in the stereotypic and neutral mental imagery conditions. Results for study three indicated that participants in the body gratitude condition reported significantly higher body and appearance satisfaction and significantly lower internalized weight bias when compared to the neutral condition. However, no significant differences were found between the groups for reported levels of weight bias. Implications and future research directions for each of these studies are discussed.