Background: Recent attention and focus on, antiracism training in health care has potential to accelerate our path to social justice and achieve health equity on a national scale. However, theoretical frameworks and empirical data have yet to emerge that explain the uptake of antiracism trainings and their efficacy.Objective: This goal of this study was to test hypotheses regarding uptake of antiracism training in Family Medicine departments using Diffusion of Innovation Theory.Methods: In 2021, we incorporated 10 survey items in the Council of Academic Family Medicine Educational Research Alliance's national omnibus survey for Department of Family Medicine Chairs (n = 104). We used DOI (Diffusion of Innovation) attributes (ie, relative advantage, compatibility, complexity, trialability, and observability) as a guiding framework to assess perceived innovation of antiracism training. We also evaluated the mode of training (eg, didactic, experiential) and whether any subsequent policy or practice-level antiracist actions occurred. We used c 2 tests to examine associations between DOI attributes and antiracist actions; and logistic regression to determine odds of association.Results: Ninety-two percent of respondents indicated antiracism training was happening in their department. Relative advantage, compatibility and observability were positively associated with antiracist actions, P < .05. Perceived relative advantage was associated with implementation of antiracist action (OR 1.94,. Complexity and trialability were not statistically significantly associated with action.Conclusion: Our findings provide evidence of DOIs influence on antiracism uptake in Departments of Family Medicine. We believe our findings can facilitate the future implementation of antiracism training activities and actionable antiracist policies and practices.