Habitat For Humanity International (HFHI), generally referred to as Habitat for Humanity or simply Habitat, is an international, non-governmental, non-profit organization devoted to building "simple, decent, and affordable" housing, a self-described "Christian housing ministry." The international operational headquarters are located in Americus, Georgia with the administrative headquarters located in Atlanta. There are five area offices located around the world: United States and Canada; Africa and the Middle East (located in Pretoria, South Africa); Asia-Pacific (Bangkok, Thailand); Europe and Central Asia (Bratislava, Slovakia); and Latin America and the Caribbean (San Jose, Costa Rica).

Community-level Habitat offices act in partnership with and on behalf of Habitat for Humanity International. In the United States, these local offices are called Habitat affiliates; outside the United States, Habitat operations are managed by national offices. Each affiliate and national office is an independently run, nonprofit organization. Affiliates and national offices coordinate all aspects of Habitat home building in their local area, including fundraising, building site selection, partner family selection and support, house construction, and mortgage servicing.