Screening for psychosocial distress is an accreditation requirement of the Commission on Cancer, underscoring the importance of addressing cancer patients’ psychosocial needs. Mindfulness-based training is one strategy that has been shown to help cancer patients reduce distress and improve quality of life. However, logistical requirements of standard in-person mindfulness classes make it impractical for cancer patients to receive benefit. To address this issue, we have conducted a few studies that demonstrated the feasibility, acceptability, and preliminary efficacy of non-face-to-face mindfulness approaches (e.g., CD, MP3 and mobile app). Building on these studies, this project will pilot test the feasibility of implementing a mobile/online-based mindfulness program for advanced cancer patients and their caregivers in a cluster randomized trial involving six oncology clinics.