The knowledge of same-sex intimate partner violence (IPV) is limited. This study aims to investigate the perception of seriousness of same-sex IPV. A vignette study was undertaken among 248 police students (69% males and 31% females) in Sweden. The vignettes portrayed an intimate partner relationship between two people and were available in four versions with the sex of the offender and victim being alternated. Perceptions of IPV were measured using the Opinions of Domestic Violence Scale (Ahmed et al., 2013). The results showed that regardless of gender, IPV was considered serious; however, same-sex IPV was perceived as less serious than victimization of a heterosexual female but more serious than victimization of a heterosexual male. Police interventions were found to be less needed for same-sex victims than for heterosexual female victims.