Witnessing victimization in prison is a relatively new area of research. Prison victimization research focuses on direct experiences of victimization and its attending consequences; however, studies have not focused on the vicarious victimization experiences of prisoners. Drawing from the prison victimization, witnessing/exposure to violence, and offender reentry literature, this study will investigate the link between witnessing victimization in prison and individual post-release outcomes. Using multivariate analyses, I examined the extent to which individuals witness victimization in prison and the effects of witnessing victimization on individual post-release outcomes using The Prison Experience and Reentry study, a longitudinal study of 1613 males residing in Ohio halfway houses. The findings suggest that a significant proportion of offenders witness victimization while incarcerated. Furthermore, witnessing victimization, particularly witnessing sexual victimization and stealing, was significantly related to post-release outcomes. Policy implications and directions for future research are discussed