Background:Concerning the growing burden of mental illnesses globally, there has been an increased investment into the implementation of evidence-based mental health interventions (EBmhIs) in routine care settings. However, the uptake and implementation of these EBmhIs has faced challenges in the real-world context. Among the many barriers and facilitators of implementation of EBmhIs identified by implementation science frameworks, evidence on the role of readiness for change (RFC) remains sparse. RFC constitutes the willingness and perceived capacity of stakeholders across an organization to implement a new practice. Theoretically, RFC has been defined at organizational, group, and individual levels, however, its conceptualization and operationalization across all these levels have differed in studies on the implementation of EBmhIs. By conducting a scoping review, we aim to examine the literature on RFC within the implementation of EBmhIs.Methods:This scoping review will be conducted following the PRISMA-ScR guidelines. Iterative review stages will include a systematic and comprehensive search through four electronic databases (PubMed, Web of Science, Embase, and PsycINFO), selecting studies, charting data, and synthesizing the results. English-language studies meeting the inclusion criteria will be screened independently by two reviewers.Results:This review will synthesize knowledge on the conceptualization of RFC across organizational, group, and individual levels within the implementation of EBmhIs. In addition, it will identify how RFC has been measured in these studies and summarize the reported evidence on its impact on the implementation of EBmhIs.Conclusions:This review will assist mental health researchers, implementation scientists, and mental health care providers to gain a better understanding of the state of research on RFC within the implementation of EBmhIs.Registration:The final protocol was registered with the Open Science Framework on October 21, 2022 (https://osf.io/rs5n7).