OBJECTIVE: The purpose of the study was to examine potential psychological health benefits of participating in a brief (5-week) mindfulness-based stress reduction (brief MBSR) program integrated into an academic course.PARTICIPANTS: Participants were 119 undergraduate students (treatment: n = 72; control: n = 47) enrolled in elective academic courses on addictive behaviors, between January 2010 and May 2012. METHODS: This study employed a quasi-experimental pretest/posttest design comparing changes in psychological health between brief MBSR treatment and parallel control groups. Baseline and follow-up data were collected synchronously across semesters for both groups. RESULTS: Analysis of covariance revealed significant improvements in psychological health, measured by mindfulness (Philadelphia Mindfulness Scale: p ≤ .001; Kentucky Inventory of Mindfulness Scale: p ≤ .001) and self-compassion (Self-compassion Scale: p ≤ .001), among brief MBSR participants compared with the parallel control cohort. Significant reductions in trait anxiety were not evident. CONCLUSIONS: Brief MBSR programs can improve psychological health; however, longer MBSR programs may be needed to improve psychological distress, such as trait anxiety.