The COVID-19 (SARSCoV-2) pandemic is a serious health problem that has affected many countries. There have been over 82,994,220 confirmed cases and 1,810,000.360 deaths. These widespread outbreaks can have adverse effects on mental health. It is therefore important to know the impact and extent of these problems. We conducted a Systematic Mapping Study to collect, catalogue, and classify research activities that examine the psychological effects of COVID-19. This included anxiety, depression, stress, and other common psychological reactions to the COVID-19 epidemic. As part of the literature review, we explored two key areas: a) observational research, which reports on mental health symptoms in specific populations; and b) review articles and commentaries, which address the psychological impact COVID-19 has on the general population and healthcare workers as well as high-risk populations. A more systematic approach to research is needed that considers confounders and associated factors, such as sociocultural and health outcomes, demographics, and sociocultural.