This article discusses the potential of multidisciplinary peer-mentoring groups to facilitate individual and institutional change. To do this, we view peer mentoring as a form of "critical education praxis" (Mahon et al. 2019), the purpose of which is to create a space for reflexive thinking and asking critical questions. The data were collected by interviewing all thirteen participants -- doctoral students and more established scholars -- of a multidisciplinary peer-mentoring pilot project. The results show a variety of both individual changes and desired changes within the university, which were brought into view as a result of the sharing of experiences, views and ideas in an open, confidential, multidisciplinary space. Based on these results, we argue that multidisciplinary peer mentoring has a high potential to offer an excellent space for collaborative, critical dialogue, which could ultimately facilitate change among individual academics, but also potentially more widely within higher education institutions.