This study aimed to determine the relationship between food delivery app usage, fat intake, physical activity, and the overweight status of students at public high school in Jakarta. The cross-sectional study involved 77 students from grades X and XI. The frequency of food delivery was grouped into ≥3 times/week or less. Types of food were grouped into light or heavy meals. Physical activity was measured using IPAQ-SF (International Physical Activity Questionnaire - Short Form) and fat intake using SQ FFQ (Semi-Quantitative - Food Frequency Questionnaire). Fat intake was grouped into sufficient and excess category. Physical activity was grouped into low and sufficient category. Chi-square analysis found that there is a significant correlation between overweight status and frequency of food delivery application usage (p<0.001). However, there is no significant correlation between overweight status with the type of food ordered (p=0.467) as well as the amount of food ordered (p=0.655). On the other hand, fat intake showed a significant association with overweight status in adolescents (p<0.001). A significant association was also found between physical activity and overweight (p<0.05). This study showed that the adolescents’ use of food delivery applications, fat intake, and physical activity have a significant correlation with their overweight status. However, the type and amount of food ordered did not show a significant correlation. Despite the insight offered, the study was small and limited in one school hence generalization of findings is limited. Thus, a larger study with diverse subjects is needed.