The Bill & Melinda Gates Foundation (BMGF) is an American private foundation founded by Bill Gates and Melinda French Gates. Based in Seattle, Washington, it was launched in 2000 and is reported to be the second largest charitable foundation in the world, holding $69 billion in assets as of 2020. The primary stated goals of the foundation are to enhance healthcare and reduce extreme poverty across the world, and to expand educational opportunities and access to information technology in the U.S. Key individuals of the foundation include Warren Buffett, chief executive officer Mark Suzman, and Michael Larson.

A private foundation is a tax-exempt organization that does not rely on broad public support and generally claims to serve humanitarian purposes.