Nader is a common surname and can refer to several notable individuals, including Ralph Nader, an American political activist and consumer advocate. He is best known for his work in promoting safety regulations in the automobile industry and advocating for consumer rights. Nader has run for the presidency multiple times, emphasizing issues like corporate accountability and environmental protection. In addition to individuals, "Nader" can also refer to various places and organizations. For example, there are towns named Nader in different countries, and it may also be associated with businesses or initiatives focused on social justice and environmental sustainability.