School psychology has been criticized for limited attention to and limited evidence-based resources for diverse populations in domestic and international settings, in part because of its foundations on psychological knowledge generated primarily in North America and Western Europe. Moreover, in the past 25 years, the profession has made insufficient progress in changing its focus toward an ecological systems perspective as initially envisioned by Conoley and Gutkin in 1995 and revisited in this issue. In this article, we embrace and expand that vision to include the infusion of global and intercultural perspectives into school psychology research, training, practice, policy, and advocacy as a means to address cultural diversity within local contexts across the globe, with a particular focus on school psychology within the United States. We begin with a discussion of terminology that addresses international and cross-cultural issues related to diversity. We then examine past and present perspectives and approaches to cultural diversity and globalization within school psychology and propose future directions for research, training, practice, policy, and advocacy within a global-intercultural perspective. We conclude with our reflections about transforming school psychology and school psychologists.