School psychologists have a unique and multifaceted role within schools and must work with a variety of stakeholders. Therefore, it is important to explore and understand the perspectives of other educational professionals regarding the roles of school psychologists. This study examined the perspectives of principals (N = 21), teachers (N = 86), and school psychologists (N = 81) regarding what they believe should be the role of school psychologists. Participants were working in Catholic, Independent, and Government primary and secondary schools across Victoria, Australia. Results revealed both similarities and differences between the three groups regarding perspectives about school psychologists' role. For instance, the three groups shared similar perspectives that school psychologists should: (a) conduct research on issues relevant to the school, (b) be up-to-date on relevant research, (c) conduct psychological assessments, (d) provide counselling to students, (e) organise group programs for students, (f) organise workshops and provide information to teachers on issues of students' welfare and (g) inform primary students' parents of their child's participation in counselling. However, the three groups also differed in their perspectives about some aspects of the school psychologists' role. It was notable that each of the differences in perceptions between the groups had implications for potential ethical dilemmas, for instance: (a) boundaries, (b) dual relationship, (c) confidentiality/who is the client? and (d) informed consent. Implications for practice and scholarship in the field of school psychology are discussed.