This short course provides an overview of the approach and toolset developed by the Open Data for Resilience Initiative. Major topics covered include the rationale and practices of the open data movement, tools for sharing geospatial data, community mapping and citizen science for disaster and climate risk management, and new approaches for communicating complex risk data to a range of stakeholders. In 2011, Global Facility for Disaster Reduction and Recovery (GFDRR) launched the Open Data for Resilience Initiative (OpenDRI) to apply the concepts of the global open data movement to the challenges of reducing vulnerability to natural hazards and the impacts of climate change. OpenDRI supports World Bank Regional Disaster Risk Management Teams to build capacity and long-term ownership of open data projects with client countries that are tailored to meet specific needs and goals of stakeholders. OpenDRI supports government in the creation, sharing, and use of open data.