This study aimed to investigate the mediating role of intolerance of uncertainty, depression, anxiety, and stress in the relationship between the fear of COVID-19 and positivity. The partici-pantsconsistedof960individuals,including663females(69.1%)and297males(30.9%).Theage oftheparticipantsrangedbetween18and76(29.74 ± 9.64).Asaresultofthecorrelationanalysis,a positive relationship was found between fear of COVID-19 and intolerance of uncertainty, depression, anxiety, and stress, and a negative relationship was determined between the fear of COVID-19 and positivity. The result of the analysis for the study model indicated that there was a mediating role of intolerance of uncertainty, depression, anxiety, and stress in the relationship betweenthefearofCOVID-19andpositivity.EliminatinguncertaintyfromthefearofCOVID-19 will contribute to reducing depression, anxiety and stress, and increasing positivity.