Please use this link to access this publication. Abstract Objective: Health consequences of commercializing nonmedical cannabis remain unclear, but data suggest that youth may encounter unintended risks. This study examined whether cannabis marketing exposure and engagement are associated with problematic cannabis use among adolescents. Method: The analytic sample included 172 lifetime cannabis users (15–19 years old) who lived in one of six states with legalized nonmedical cannabis in 2018. Predictors included having exposure to or engagement with cannabis marketing on Facebook or Instagram, seeing cannabis billboards, owning/likely to own cannabisbranded merchandise, and reporting a favorite cannabis brand. Logistic regression assessed whether these predictors were...