The aim of this research is to determine the Dark Personality Traits levels of the athletes and to examine the differences in terms of demographic variables. The Dark Triad Scale developed by Jones and Paulhus (2014) and adapted into Turkish by Agrali-Ermis, Sahin and Demirus (2018) was used as a data collection tool in the descriptive survey model, which is one of the quantitative research methods. The sample of the study consists of 817 athletes determined by random method. As a result of the research; it was determined that the dark triad characteristics of the participants were at a moderate level and the highest rate was in the dimension of Machiavellianism and narcissism. It was determined that female athletes had higher Machiavellianism scores than male athletes. In addition, it was observed that the level of narcissism increased significantly as the education level increased. When analysed according to the branches, it was determined that the participants who do team sports have both Machiavellian and psychopathic personality characteristics higher than the participants who do individual sports.