Background: The long history of the Palestinian-Israeli conflict has resulted in a public and mental health crisis. Despite the significant mental health burdens facing the Palestinian population in the Occupied Palestinian Territories (OPT) and refugee camps, this issue remains comprehensively unexplored. Aims: This scoping review identified mental health interventions and assessed their effectiveness among populations in the OPT and Palestinian refugee camps, while addressing delivery challenges. Method: A scoping review was conducted using 14 databases to include relevant studies published through March 2024 using PRISMA guidelines for scoping reviews. Results: Analyzing 31 intervention studies meeting the inclusion/exclusion criteria, revealed varied outcomes in interventions targeting post-traumatic stress disorder, depression, and overall mental well-being. Conclusions: While some interventions showed potential, others had limited effectiveness, underscoring the complexity of mental health needs in conflict zones. Gender- and risk-specific effectiveness was observed, emphasizing the need for tailored approaches. Challenges like low attendance rates and systemic barriers hindered intervention success. The profound impact of war on children stresses the urgency for targeted interventions. Empowerment and community connectedness are vital for resilience, along with the importance of family and community involvement and research that balances the need for strong evaluation designs with the need for ongoing mental health services. Advocacy for systemic changes is crucial to implement the complex sustainable interventions necessary to assure mental health in any population. This review highlights the importance of holistic, contextually relevant approaches for mental health intervention in OPT and refugee camps, emphasizing rigorous evaluations and community-driven approaches.