The chapter outlines the concept of the global financial networks, defined as networks of the financial and business services firms, and their activities linking financial centres, offshore jurisdictions, and the rest of the world. It is a concept that helps to map finance, place it on the map of the world economy, and analyse the latter in a dynamic framework accounting for the forces of globalization and financialization. At the core of the global financial networks lies the global network of securities centres, focused on the creation, distribution, and circulation of securities, which contributed to the recent global financial crisis. Major trends reshaping the global financial networks include the rise of regulation and public finance, technologies connecting investors, borrowers and lenders with each other, and a potential geo-financial shift towards Asia.