Alcohol addiction consists of excessive alcohol consumption, which leads to health and social damage and difficulties. Continuous and repeated consumption of alcohol in excessive quantities interferes with participation in family life and the performance of family roles. Depressed mood (depressiveness) is a negative and normal mood, it occurs after negative experiences and is characterized by negative forms of manifestation (sadness, lack of energy, sleep disorders, etc.). Depressive mood (depressiveness) among young people is more pronounced when parents are less available for appropriate and desirable contacts. Parental alcohol addiction prevents the necessary high-quality communication between parents and children, which is positively related to a higher level of depressiveness (with the presence of parental alcohol addiction, depressiveness will be more expressed). The aim of this research was to check the connection between the level of depressiveness in adolescents and their parent's alcohol addiction, and to check whether the severity of depressiveness differs depending on the gender of the adolescents. The problems of the research were: to determine whether there is a difference in the expression of depressiveness between the group of adolescents whose parents consume alcohol excessively and the group of adolescents whose parents do not consume alcohol excessively, to determine whether there is a difference in the expression of depressiveness regarding the sex of the adolescents and to determine whether there is an interaction between the expression of depressiveness and gender in the group of adolescents with excessive alcohol consumption by their parents. The Beck Depression Inventory-II was used. The obtained results showed: that the expression of depressiveness is higher in the group of adolescents whose parents consume alcohol excessively and that there is no difference in the expression of depressiveness regarding the sex of adolescents, and that the interaction between the expression of depressiveness and gender in the group of adolescents with excessive alcohol consumption of their parents is insignificant.