PURPOSE: The purposes of this study were to assess social adjustment of childhood cancer survivors and to identify factors affecting social adjustment. METHODS: Data were collected from 79 childhood cancer survivors and his/her parents. The survey consisted of questions related to characteristics, physical functioning, depression, self-esteem and coping strategies. The Social Competence Inventory was used to measure social adjustment in the children. RESULTS: The level of social adjustment of childhood cancer survivors was 83.5 out of a possible 155. Physical functioning, depression, self-esteem, and aggressive or proactive coping strategies were associated with social adjustment. Only physical functioning independently affected social adjustment. CONCLUSION: The results of this study indicate that there are several factors influencing social adjustment of childhood cancer survivors, and therefore there is a need for programs that deal with all aspects of children's physical as well as emotional health in order to enhance their social adjustment.