Studies have found that offline and online racism are linked to mental health issues including depressive and anxiety symptoms among racially minoritized emerging adults. To cope with these symptoms, racially minoritized emerging adults may resort to substance use. Thus, we examined the relationship between offline and online racism and recent smoking behaviors (past 30 days), and whether depressive and anxiety symptoms (DAS) mediate this relationship. We hypothesized that offline and online racism would be associated with a greater probability of recent smoking through depressive/anxiety symptoms. With data from 338 participants (Mage = 23.28, SD = 2.38), we conducted a path analysis of offline racism (Everyday Discrimination Scale) and online racism (Perceived Online Racism Scale) predicting recent smoking (recent cigarette smoking, recent marijuana use, recent vaping) via depressive (Patient Health Questionnaire-9)/anxiety (Generalized Anxiety Disorder-7) symptoms. Offline racism was directly associated with recent cigarette smoking while online racism was directly associated with recent vaping. No significant indirect associations were observed with cigarette smoking and vaping. Both online and offline racism were indirectly associated with recent marijuana use via depressive/anxiety symptoms. Our findings suggest that there are nuanced differences between the impact that online and offline racism experiences may have on the DAS, and smoking behaviors of racially minoritized emerging adults. Implications for research are discussed. (PsycInfo Database Record (c) 2023 APA, all rights reserved).