Acceptance and Commitment Therapy for Chronic Pain in Cancer Survivors

Inclusion Criteria: 1. Provision to sign and date the consent form 2. Stated willingness to comply with all study procedures and be available for the duration of the study 3. Be a male or female aged 18-100 4. Have pathology confirmed diagnosis of a solid tumor cancer 5. Be three or more months out from active cancer treatment (surgery, chemotherapy, and/or radiation) 6. Endorses experiencing pain for three or more months prior to eligibility screening 7. Indicates moderate to severe difficulties with pain interference as related to their cancer experience, with a score of 4 or higher on the pain interference item from the Chronic Pain Grading Questionnaire 8. Shows no evidence of cancer disease (NED) or with stable, chronic disease under "watchful waiting" 9. Fluent in English 10. Psychiatric stability as assessed by chart review and study personnel (e.g., not exhibiting symptoms consistent with diagnoses of serious mental illness such as active psychosis or mania) Exclusion Criteria: 1. Having pain that can be solely attributed to a diagnosis outside of their cancer experience 2. Presenting with barriers to group participation (e.g., social anxiety) or when group-based provision of care would impede participant's treatment or that of other group members 3. Patients with a diagnosis of malignant neoplasm of the brain (ICD-10 C71) or malignant neoplasm of spinal cord, cranial nerves and other parts of central nervous system (ICD-10 C72).