Mindfulness-based interventions and mindfulness techniques have become increasingly popular in psychosocial care. These interventions have also been increasingly used with cancer patients and survivors. However, more attention is due to issues such as how these techniques may be specifically relevant for an oncology population and whether the religious derivation of mindfulness should be considered by frontline psychosocial clinicians. This article provides a history and overview of the use of mindfulness in psychosocial cancer care.