Objective Extant studies indicate that just one characteristic of sexual assault cannot properly represent the whole experience of sexual assault and, especially, the severity of sexual assault. This study aimed to understand the totality of sexual assault experiences and eluci-date subtypes of sexual assault victims based on the detailed characteristics of their sexual assault experiences and those relationships with mental health. Methods A total of 255 adult sexual violence victims who used intervention services and a comparison group were included. Informa-tion on their sexual assault experiences was gleaned from case records data. Results The following four distinctive profile groups were identified: “Sexual Touching” (19.6%), “Rape/Social Relation” (30.4%), “In-timate Partner Violence (IPV)” (18.8%), and “Rape/Stranger” (31.3%). The subgroups differed in terms of secondary victimization and adverse childhood experiences. The Rape/Social Relation and IPV subgroups most frequently experienced secondary victimization and childhood adversity. The four profile subgroups demonstrated different relationships with mental health outcomes, with a complicated pattern. The Rap/Social Relation and IPV subgroups scored higher on mental health problem screening measures compared to other groups. However, a considerable proportion of victims in the Sexual Touching subgroup also reported suicidal behaviors and self-injury. Conclusion Based on the results, theoretical and clinical implications were discussed. Psychiatry Investig 2021;18(4):312-323