Introduction: Following the growing interest in positive psychology, in recent years, research has been rapid growth in forgiveness and its relationship to health. In line with these studies, the purpose of the present study was to assess the role of interpersonal forgiveness in predicting of resilience and pain severity in chronic pain patients.
 Materials and Methods: In this descriptive-correlational study, 218 patients with chronic pain from several medical centers affiliated to Isfahan University of Medical Sciences in 2014 were selected by convenience sampling. The research instrument was three questionnaires: Interpersonal Forgiveness Inventory (IFI), Connor-Davidson Resilience Scale (CD-RISC) and Multidimensional Pain Inventory (MPI). Data was analyzed using correlation and multiple regressions by SSPS-20.
 Results: The results showed that interpersonal forgiveness had significantly positive relationship with resilience in chronic pain patients (P<0.05), while it had no significant correlation with pain severity and age in these patients. Moreover, the results of regression analysis showed that interpersonal forgiveness components predict 42 percentages of resilience scores in chronic pain patients.
 Conclusion: Based on the results of this study development in understanding of concepts in positive adaptability such as interpersonal forgiveness and resilience can help chronic pain patients.