Objective: The main aim of the current study was to investigate the links between ADHD diagnosis and the objective and subjective dimensions of social relationships among children from primary schools. Method: We used the data from 36 regular classrooms, consisting of 718 students, with each containing at least one child with an established clinical diagnosis of ADHD (38 children). Results: For children with ADHD, the level of the perceived quality of social relations was lower than that of children without such a diagnosis. After controlling for sociometric status, the impact of ADHD on perceived status proved to be statistically nonsignificant but the indirect impact of ADHD on this status through sociometric status was statistically significant. Conclusion: Children diagnosed with ADHD are more often rejected by their peers and have a more pessimistic view of their social world. Moreover, ADHD diagnosis does not have a direct influence on the perceived quality of social relations otherwise than through sociometric status.