Evidence is reviewed that indicates that social anxiety is a significant motivation for drinking among college students. Although the link between social anxiety and alcohol consumption has been studied from a variety of perspectives, there has been little integration of data. Drawing from the alcohol and anxiety literature, the relationship between social anxiety and heavy drinking in college students is examined. Findings indicate a clear relationship between social anxiety and drinking that may be moderated by alcohol expectancies and self-efficacy beliefs specific to socially anxious situations. A social cognitive model is proposed to guide future research and intervention efforts. A better understanding of college students' reasons for drinking offers the possibility of improving prevention and treatment efforts designed to reduce excessive drinking.