Importance: Although young adults are on average less affected by the physical consequences of COVID-19 infections, showing less severe disease progression and lower mortality risk, they suffer strongly from the mental health impact of the pandemic.Objective: We, a group of psychology students experiencing these impacts, aim to provide an overview of the existing literature on prevention and intervention efforts to effectively reduce the development of, or suffering from, mental health problems in young adults (18-35) during the COVID-19 pandemic.Evidence Review: A rapid systematic review was conducted to identify studies focusing on the implementation of mental health interventions for young adults of the general population during the COVID-19 pandemic. Literature was searched with Pubmed and Web of Science on June 17, 2021. The quality of each study was assessed by two reviewers with the Standard Quality Assessment Criteria for Evaluating Primary Research Papers.Findings: Of N = 76 records initially screened, eight studies met the inclusion criteria. Six applied web-based interventions, of which four were randomized controlled trials. Interventions were based on Cognitive Behavioral Therapy approaches (n = 5), mindfulness practices, logo-autobiography, and synergistic thinking methods. The interventions varied in length from single sessions to multiple sessions over a period of up to 10 weeks. All interventions were effective in reducing depression and anxiety symptoms, as well as stress with small to medium effect sizes and a symptom reduction up to 78.9%. With only three studies being of high quality, the overall quality was low.Conclusions and Relevance: Research on mental health interventions for young adults in the general population during the pandemic is sparse. However, all interventions resulted in symptoms reductions and thus have been shown to be effective ways of counteracting the potential development of mental disorders during times of uncertainty, with high levels of stress, such as during a pandemic. Therefore, we propose a concept for an innovative and cost-effective web-based platform to structure and raise awareness for existing measures.