The study was carried out to explore the relationship between screen time, aggression and ADHD symptoms in school going children. It was hypothesized that there is likely to be positive relationship between screen time and aggression in school-going children. It was also hypothesized that there is likely to be positive relationship between screen time and hyperactivity in school-going children. It was hypothesized that there is likely to be a significant gender difference among variables. Through Convenient sampling technique, data was collected from school going children (N=120) with age range of 9 to 15 (M=17.18, SD=.81) from different schools of Punjab. Aggression scale by Orpinas and Frankowski (2001) and ADHD scale by Conners (1997) were used to measure the study variables. For analysis, Pearson moment correlation, independent sample t-test and ANOVA were used. The results of the present study found significant positive relationship between screen time, aggression and hyperactivity in school going children. Significant gender difference was not found in any of the study variables. Findings of the study will be helpful in prevailing awareness among parents regarding their children’s activity on screen time and will be helpful in providing psychological interventions to the students with ADHD symptoms.