The aim of this chapter is to identify and assess the nature of published, peer-reviewed literature in English on the relationship between green areas (parks, forests, neighborhood parks, green vacant land, interstitial spaces) and crime and perceived safety. This goal is achieved by performing a systematic literature overview from 1968 to 2018 from the major databases and respond to the following questions: (1) Which are the most common types of the green areas associated with crime and/or poor perceived safety in the international literature? (2) Do green areas affect the occurrence of crime and disorder, and if so, how? (3) Do green areas impact on perceived safety and, if so, what are the mechanisms? The chapters concludes with a discussion of policy and research recommendations.