Survivor guilt can arise after surviving a trauma in which others die. No studies have systematically investigated psychological treatment for survivor guilt. The present study was a proof-of-concept investigation of treatment of survivor guilt using imagery rescripting. Thirteen participants with post-traumatic stress disorder and self-reported survivor guilt attended two consecutive imagery therapy sessions, to first elaborate and then rescript related imagery. Significant improvements were observed on idiographic process measures of cognitons, emotions and distress related to survivor guilt following the rescripting session. The study provides preliminary evidence that imagery rescripting can be used as an experiential technique to treat survivor guilt.