Colonel Josiah Clement Wedgwood, 1st Baron Wedgwood,, sometimes referred to as Josiah Wedgwood IV, was a British Liberal and Labour politician who served in government under Ramsay MacDonald. He was a prominent single-tax activist following the political-economic reformer Henry George. He was the great-great-grandson of potter Josiah Wedgwood.

Georgism, also called in modern times Geoism, and known historically as the single tax movement, is an economic ideology holding that people should own the value that they produce themselves, while the economic rent derived from land—including from all natural resources, the commons, and urban locations—should belong equally to all members of society. Developed from the writings of American economist and social reformer Henry George, the Georgist paradigm seeks solutions to social and ecological problems, based on principles of land rights and public finance that attempt to integrate economic efficiency with social justice.