Abstract. The purpose of this systematic review is to analyze the COVID-19 pandemic’s effects through the lens of community psychology. Our study applied PRISMA methodology, and it was carried out using the PsycInfo, PubMed, Embase, and EBSCO databases utilizing the keywords “connectedness,” “resilience,” “shared action,” “social action,” “trust,” “individual well-being,” and “social well-being.” We selected 12 of 216 eligible publications based on the inclusion criteria. The results indicated that the role of trust in institutions and others is a protective factor for communities that experience crises, such as the COVID-19 pandemic. Moreover, developing social actions promoted connections and social support and that, in the absence of in-person communication, online communication promoted connections and reduced psychological distress and isolation. Finally, the study revealed that some psychosocial factors stem from declines in people’s well-being due to the pandemic and subsequent lockdowns. Furthermore, our findings highlighted the role of technology as a positive communication tool for promoting connectedness and social support, as well as the social function of trust in institutions. Our results suggested that community interactions at the local and virtual levels should be viewed as positive actions to support institutions in detecting the most effective social intervention measures to stimulate individual and community well-being during the pandemic. These findings may serve as a guide for health policymakers in their efforts to face the effects of the COVID-19 pandemic supporting beneficial strategies for social planning and effective public policies. Finally, both the strengths and limitations of the research will be discussed in depth.