This study examines whether neighborhood factors found to predict fear of crime among the general population can be adapted to explain inmate fear of victimization inside juvenile correctional institutions. We test (a) whether institutional physical disorder, resident trust, and formal social control can predict fear of victimization, and (b) whether the importance of these factors for fear of victimization varies based on preincarceration street gang status. Using data from a large national sample of incarcerated youths, findings indicate non-gang members are more afraid of institutional victimization than gang members, confirming findings about levels of fear between these groups on the street. "Neighborhood" (institutional) physical disorder and resident trust predicted fear for gang and non-gang youths, whereas formal social control was significant only among non-gang youths. We discuss policy implications and directions for future research.