Peer support models of service provision have become increasingly prevalent in recent decades across multiple health and human services fields. In this scoping review, we examine peer support work within the context of intimate partner violence (IPV) service provision, including an examination of how this approach is conceptualized, the mechanisms underlying it, the impact of professionalism, and the benefits and challenges experienced by IPV peer support workers (PSWs). Three social science databases were searched with keywords related to IPV and peer support work, with additional articles and materials identified via targeted Google searches. The final sample of materials meeting criteria for the study (i.e., focusing on trained peer workers and their experiences serving IPV survivor clients) includes 10 papers and reports published from 1983 to 2022. We find that peer support work is conceptualized as a holistic alternative to traditional forms of IPV service provision, and that PSWs are viewed as occupying a unique role in relation to clients that enhances their ability to provide comprehensive care. However, we also identify several challenges resulting from the increasing professionalization of the IPV field, including a lack of role clarity for PSWs, a need to balance structure and flexibility in peer work service settings, and skepticism toward PSWs from credentialed professionals. Lastly, we find that although PSWs experience advantages from providing services, including enhanced personal growth and healing, they also navigate challenges related to maintaining their own emotional well-being and would benefit from additional training and institutional support.