An Overview of National Strategies and Policies for Quantum Technologies examines the development, implementation, and governance of national quantum technology strategies across countries. As governments increasingly recognise the potential economic, industrial, and security implications of quantum technologies, they are introducing dedicated strategies and policy instruments to strengthen their national capabilities. This OECD report provides an overview of the global policy landscape and identifies key factors shaping the development of national quantum ecosystems. The first part examines how countries translate strategic visions into concrete and measurable objectives. It discusses technological priorities, public funding, private-sector engagement, roadmap development, governance structures, intergovernmental coordination, and key performance indicators. It also explores international collaboration, standardisation, technology protection, and national security considerations. The second part focuses on the policy instruments governments use to support the development and adoption of quantum technologies. These include institutional funding for public research, project-based research grants, business research and development support, public procurement, and equity financing. Through examples of national initiatives, the report highlights the importance of coordination among governments, universities, research institutions, industry, and investors in building sustainable quantum technology ecosystems.