This chapter provides a comprehensive overview of the diverse and evolving regulatory frameworks governing FinTech and blockchain technologies across key global jurisdictions. It begins by highlighting the fragmented international landscape, where approaches balance innovation with consumer protection and financial stability. The core of the chapter offers a comparative analysis of regulatory environments in major FinTech hubs, detailing the specific laws, licensing regimes, and regulatory bodies in each region. The analysis emphasizes critical areas such as Anti-Money Laundering (AML) and Counter-Terrorist Financing (CTF) compliance, data privacy, securities regulation, and the specific treatment of digital assets and stablecoins. The chapter also examines the influential role of international standard-setting bodies like the Financial Action Task Force (FATF). Finally, it concludes with strategic guidance for FinTech firms on navigating cross-border regulatory complexities, implementing effective compliance programs, and scaling operations internationally within this multifaceted legal environment.