Background and aims: The aim of the present study is to examine the association between parenting practices and adolescent alcohol use in a longitudinal sample of adolescents from Sweden. Data and methods: A prospective longitudinal sample of 3,685 adolescents in a nationwide study in Sweden (2017-2019) filled out questionnaires. Baseline data (T1; 2017) was collected from participants at age 15 to 16 years, and a two-year follow-up (T2; 2019) was conducted at age 17 to 18 years. Alcohol use was measured with AUDIT-C. Parental support and monitoring were measured at both time points with two questions for each dimension. Cross-sectional and prospective associations were examined using linear regressions. Results: In the cross-sectional analyses, a significant negative association with alcohol consumption was found for parenting practices, i.e., support and monitoring, at both time-points in the crude models. Only monitoring remained significant in the adjusted models. The prospective analyses showed that monitoring at T1 had a significant negative association with alcohol use at T2. Increases in both parenting practices between T1 and T2 were significantly associated with lower alcohol use at T2. Conclusions: Parental support and monitoring during adolescence are closely associated with adolescent drinking. The findings underscore the importance of ongoing parental engagement, particularly in terms of parental monitoring throughout mid-and late adolescence to prevent drinking.