Men consume more alcohol than women, both globally and within the United States specifically, experience different patterns of social problems from drinking, and differ in their risk for developing alcohol use disorder (AUD). Research has explored whether these differences are attributable to a number of factors that differ between men and women, including biological differences, personality traits, mood, and drinking motives. Multiple studies (McCreary et al., 1999; Neve et al., 1997) have demonstrated that traditional gender norms may partially account for gender differences in drinking - with adherence to traditional masculine norms associated with increased alcohol consumption among men, and traditional feminine norms associated with lower consumption among women. The current study used an ecological momentary assessment (EMA; Shiffman, 2009) design to test an event-level model by which gender norms may influence drinking and alcohol-related problems. Specifically, we tested the hypothesis that gender nms moderated both momentary mood and drinking motives.