In the realm of psychology, mental well-being has become a growing focus of attention, especially amid increasing awareness of the importance of mental health in individuals' lives. To understand the factors that influence mental well-being, the relationship between religiosity and mental health has been the subject of interesting research. So this study aims to determine the relationship between religiosity and mental health in achieving psychological well-being. Method The methods used in this study are literature review, data collection techniques by reviewing journals contained in Google Scholar between 2019-2024 with the keywords "religiosity, mental health, psychological well-being", and data analysis using content analysis that summarizes the in-depth discussion of the information contained in the predetermined journal. Based on the results of data analysis, 13 relevant journals were obtained that can answer the researchers' questions. The results found that religiosity, as a dimension of spirituality that focuses on individual beliefs, practices, and involvement in religious activities, has become an important factor in shaping mental health to achieve psychological well-being.