Objectives The Bereavement Risk Assessment Tool (BRAT) seems to be useful in identifying those who are likely to suffer from the more severe consequences of bereavement. To date, however, only a few studies have examined bereavement risk using the BRAT. This study investigated bereavement risk in family caregivers of patients with cancer using the Japanese version of the Bereavement Risk Assessment Tool (BRAT-J). We also investigated the relationship of bereavement risk with psychological distress and resilience among caregivers to determine the validity of the BRAT-J.