Sport is an anthropological constant of childhood and adolescence, and as such insufficiently present form of physical activity in accordance with the conditions of modern life and the needs of young people. The subject of this study is children's engagement in sport in the city of Belgrade. The aim was to determine possible differences in sport's involvement between boys and girls. Nonexperimental research-type survey was carried out on a sample of 1279 respondents of both sexes (female = 640; male =639), aged 10 to 15 years. For the purpose of this study was applied non-standardized questionnaire, open type. The calculation of statistical significance of differences between the groups was performed by the Chi - square test (c2) of independence at the conclusion of the significance level 0.01. On the basis of obtained results there were determined statistically significant differences, therefore it can be concluded that engagement of children in sports, in the city of Belgrade varies according to gender.
