Community psychologists working in the policy arena are uniquely situated to improve the quality of life for individuals, communities and nations. Unfortunately, we know relatively little about the policy-related work community psychologists conduct in different parts of the world. This special issue represents a beginning foray into this area, encompassing six articles, one information brief, one commentary, and two book reviews describing the policy-related work of community psychologists in multiple nations across four continents. The articles in the special issue are based on presentations in two separate symposia conducted at the Fourth International Conference of Community Psychology (Barcelona, Spain, June 2012). The two symposia were “Psicología comunitaria y políticas sociales: Antecedentes, límites y posibilidades” (Jaime Alfaro, coordinator), and “Influencing social policy: Community psychology perspectives from four continents” (Ken Maton, coordinator).