Cannabis use is a growing public health problem, associated with a variety of negative outcomes. The identification of risk factors is relevant for prevention, as treatments are not always effective. Child sexual abuse is considered a strong predictor of cannabis use and cannabis use disorder (CUD). With the expansion of the internet, sexual violence took on new formats, giving rise to a contemporary phenomenon called online sexual victimization (OSV). This dissertation was dedicated to deepening the theme and carried out a narrative review with the objective of synthesizing the concept of OSV and its parallels with offline sexual abuse. In addition, we exploratory investigated OSV in childhood and adolescence and its associations with cannabis use and CUD. Regression analyzes investigated the predictive effect of OSV on lifetime cannabis use and age of first cannabis use. More than 70 percent ofthe sample reported having suffered OSV in childhood and adolescence. Women had almost twice the prevalence of men, with higher means in the insistence and threat subescales. Sexual minorities were more prevalent than heterosexualin allsubscales. The OSV was able to significantly predict lifetime cannabis use and age atfirst use, but only the spread subscale. The results suggest that OSV in childhood and adolescence is a highly prevalent phenomenon that maybe associated with cannabis use. Children and teenagers deserv especial attention because they use the internet more frequently and are exposed to risks. Thus, it is necessary to think about strategies to prevent the occurence of OSV and its adverse effects.