This chapter offers an overview of Quantum Technology Governance: Law & Regulation, highlighting the foundational role of quantum information technology (QIT) and the legal, regulatory, and geopolitical considerations arising from its recent advancements. It maps how quantum computing, communication, and sensing intersect with established legal and governance frameworks across intellectual property, cybersecurity, export controls, and international law. The chapter introduces a progressive analytical structure that begins with QIT’s ontological and governance foundations before turning to domain-specific regulatory considerations and global strategic implications. It synthesizes key themes developed throughout the volume, including adaptive legal interpretation; layered governance mechanisms such as the governance-stack model; mixed intellectual property strategies combining patents, trade secrets, and open innovation; empirical patent trends; EU and US approaches to quantum-enabled cybersecurity risks; the evolution of export control architectures; and the application of effects-based norms in public international law. Across these domains, the chapter identifies a recurring theme of regulatory adaptability. Although QIT introduces non-classical features that stress-test existing legal and policy systems, we argue that many challenges can be met through interpretive flexibility, evidence-based policymaking, and technology governance rather than wholesale doctrinal reform. By integrating legal analysis, empirical insights, and international governance perspectives, the chapter provides policymakers, technologists, scholars, and practitioners with a roadmap for responsible quantum governance as technologies transition from theoretical potential to practical deployment.