This study conducted a meta-analysis to determine the overall international prevalence of child sexual abuse and to examine the potential moderator variables affecting this prevalence. The analysis included 65 articles from 22 countries, covering a total sample size of 100,922 individuals (37,904 males and 63,118 females). The results showed that 7.9% of men (7.4% without outliers) and 19.7% of women (19.2% without outliers) reported experiencing some form of sexual abuse before the age of eighteen. The analysis revealed significant heterogeneity in prevalence rates between studies, with the highest rates found in Africa (34.4%) and the lowest in Europe (9.2%). The study also found that the continent of origin and the area (local or national) of the study significantly influenced the prevalence rates, with higher rates in local samples compared to national samples. Other moderator variables, such as the definition of sexual abuse, the age of the sample, and the method of data collection, did not show significant effects on the prevalence rates. The findings highlight the need for unbiased prevalence rates to inform health and preventive strategies in various countries.This study conducted a meta-analysis to determine the overall international prevalence of child sexual abuse and to examine the potential moderator variables affecting this prevalence. The analysis included 65 articles from 22 countries, covering a total sample size of 100,922 individuals (37,904 males and 63,118 females). The results showed that 7.9% of men (7.4% without outliers) and 19.7% of women (19.2% without outliers) reported experiencing some form of sexual abuse before the age of eighteen. The analysis revealed significant heterogeneity in prevalence rates between studies, with the highest rates found in Africa (34.4%) and the lowest in Europe (9.2%). The study also found that the continent of origin and the area (local or national) of the study significantly influenced the prevalence rates, with higher rates in local samples compared to national samples. Other moderator variables, such as the definition of sexual abuse, the age of the sample, and the method of data collection, did not show significant effects on the prevalence rates. The findings highlight the need for unbiased prevalence rates to inform health and preventive strategies in various countries.