Research shows that there are a variety of reasons why people self-report engaging in intimate partner violence (IPV) perpetration, but few studies report victims’ attributions for their partners’ IPV perpetration. Because there are two acting partners in relationships, as well as the IPV incidents that occur in the relationships, to fully understand the dynamics of IPV, both partners’ perceptions of why the incidents occur must be understood. The authors of this article systematically reviewed the available empirical evidence regarding male and female perpetrators’ endorsed attributions for their IPV perpetration, as well victims’ attributions for their partners’ IPV perpetration. Several literature databases were explored, resulting in 50 articles that met the criteria for inclusion in this review. IPV perpetrators’ commonly endorsed attributions for physical and psychological IPV consisted of control, anger, retaliation, self-defense, to get attention, and an inability to express oneself verbally. Research has not examined endorsed attributions for coercive control. The few studies examining attributions for sexual IPV found that it was attributed to dominance or hedonism. Themes regarding victims’ attributions were largely similar to those of the perpetrators, however, there were some differences. Victims’ attributions for physical IPV perpetration consisted of anger, control, jealousy, and the influence of drugs/alcohol, which are similar to perpetrators’ self-reported attributions for engaging in IPV perpetration. Victims’ attributions for their partners’ psychological IPV perpetration consisted of the perpetrator’s personality, relationship dissolution, alcohol, and their partners’ jealousy. Victims’ attributions for their partners’ sexual IPV perpetration, however, differed from perpetrators’ attributions, consisting of the victim believing that the perpetrator thought they wanted it, being under the influence of alcohol/drugs, and doing it out of love. Methodological inconsistencies, directions for future research, and treatment implications are also discussed.