The purpose of the study was to determine whether there is any difference between self esteem scores of individuals who engaged in individual & team sports and non-athletes. Furthermore, self-esteem scores associated with age group, gender and years of playing experience variables were examined to determine the differences. Focus group consists of 304 athletes & nonathletes of 13–20 years old individuals living in Ankara, Istanbul and Sakarya. Rosenberg's self-esteem scale was used to measure the self-esteem scores of individuals. The research data were analyzed by SPSS software. According to the results of the study, there was no significant difference between self-esteem scores of athletes and non-athletes. The same result was obtained for individual & team sport athletes and non-athletes, too. In addition, no statistically significant difference was found according to gender variable. The correlation of self-esteem scores of individuals between 13–16 and 17–20 years old was found to be statistically significant (p=0.000). Furthermore, the years of playing experience variable showed significant difference between group-1 (1-5 years of playing experience;X =19.23) and group-3 (10-14 years of playing experience; X=21.73) in favor of group-3; as well as between group-2 (6-9 years of playing experience; X=19.15) and group-3 (10-14 years of playing experience; X=21.73), also in favor of group-3.