The importance of non-state actors in today’s global system has allowed organized criminals to become major players on the international stage. This chapter uses a non-empirical desk research method to explore the complex and changing relationship between organized crime and the modern world order. Moving beyond traditional views of localized illegal activities, this study examines how transnational criminal organizations (TCOs) have used globalization, technological progress, and geopolitical shifts to extend their influence worldwide. The chapter argues that organized crime is not just a minor threat but a growing and destabilizing force shaping the current global landscape. It also investigates how TCOs exploit weaknesses in state authority, governance, and international cooperation to facilitate illegal flows of goods, capital, and people, thereby undermining the rule of law, promoting corruption, and fueling conflicts. Additionally, the chapter shows how organized crime interacts with legitimate economic and political sectors, blurs the lines between lawful and unlawful activities, and significantly impacts global security and sustainable development. This chapter concludes by calling for a swift reassessment of existing legal frameworks at national, regional, and international levels and stresses the need for more effective strategies to combat the diverse threats organized crime poses to the modern world order.