OBJECTIVE Our main aim was to investigate the factor structure of the Alcohol Use Disorders Identification Test (AUDIT) in a Finnish population sample. METHOD The AUDIT was completed by 3,125 men (mean age = 26.2 years) and 6,006 women (mean age = 26.1 years). RESULTS At a cutoff score of 8 or more, 49.8% of the men and 23.9% of the women would be identified as potentially engaged in excessive alcohol use. Exploratory factor analyses suggested a two-factor solution for both men and women. However, the factor structure was not invariant between men and women or in the different age groups among men. CONCLUSIONS This is one of the largest known general population studies on alcohol use in recent years in Finland. The findings support a two-factor solution, and it is suggested that the AUDIT cutoff scores should be tailored according to age, gender, and drinking culture.