Approximately 450,000 Veterans Health Administration service users have both posttraumatic stress disorder (PTSD) and chronic pain (CP); treatments that efficiently target both PTSD and CP are limited, and new interventions should address the unique needs of Veterans with PTSD/CP. Mantram Repetition Program (MRP), a meditation-based program, appears well-suited to address these high-priority VA needs. MRP has established effectiveness for treatment of PTSD, is broadly acceptable, can be learned quickly and applied flexibly. However, rigorous testing is needed for pain-related outcomes among a PTSD/CP population. The proposed study will include a randomized controlled trial comparing the efficacy of MRP for PTSD/CP to Health Education while Living with Pain among a sample of 170 Veterans with comorbid PTSD/CP. The primary outcomes will be PTSD symptoms and pain interference. Results from this study will directly inform patient care among the nearly 4% of Veterans with PTSD/CP.