World government is the concept of a single political body that would make, interpret and enforce international law.

World government may also refer to:

World Governments Summit, an annual event of government leaders World government (Mormonism), a prophecy in Mormon theology World Government (One Piece), the fictional world of One Piece World Government Party, a minor federalist political party in the United Kingdom Provisional World Government, a provisional government established by the Second World Constituent Assembly

See also Cosmopolitanism Global governance International Court of Justice League of Nations New World Order (conspiracy theory) On World Government Salomon Smith Barney World Government Bond Index United Nations World Federalist Movement World state in Brave New World