This study aimed to assess the traumatic impact of the COVID-19 outbreak and to explore the contribution of fatalism to a) psychological distress and b) pandemic-related behavior change. Data for the study were collected via an anonymous online survey. The survey included questions about demographic characteristics, health status, pandemic-related stress, impact of COVID-19 on health and behavior, posttraumatic stress symptoms (PTSS), and fatalism. The sample included 465 participants from 30 countries (mean age = 36.87, SD = 13.39, age range = 18 – 76; 80% female). While none of the study participants have been diagnosed with COVID-19, almost 25% knew someone who had received the diagnosis. The overwhelming majority (79%) had to make changes to their daily routine, and 48.82% of the sample reported moderate to severe PTSS. Fatalism was found to be a statistically significant predictor of PTSS in a multiple regression model and was also associated with lack of behavior changes in response to the pandemic. Our findings indicate that the COVID-19 pandemic is a traumatic event with a potential to affect mental health and well-being of individuals and communities. Fatalism may contribute to severity of psychological distress and diminish individuals’ ability to engage in health-protective behaviors.