Sex dolls are beginning to become more mainstream, both in the public’s consciousness and in academic research. However, there is no current systematic examination of public attitudes toward sex dolls within the peer-reviewed literature, which represents a barrier to the efficient study on this topic. In this paper we report the development and initial validation of such a measure. Using an international public sample (N = 377) we found that public attitudes toward sex doll owners were underpinned by three factors: ‘Acceptability of Doll Ownership’, ‘Doll Owners as Immoral’, and ‘Doll Owners as Dysfunctional’. Scores on each of these factors, which make up the Sex Doll Ownership Attitudes Scale (SDOAS), were predicted by participant sex, religiosity, permissive sexual attitudes, right-wing authoritarianism, and the endorsement of moral intuitions that favor personal liberty. We present a full form 66-item version of the SDOAS, as well as an 18-item short form which both possess strong psychometric properties. We highlight potential future uses of the SDOAS as this emerging field of study continues to rapidly grow.