The politics of Tanzania takes place in a framework of a unitary presidential democratic republic, whereby the President of Tanzania is both head of state and head of government, and of a multi-party system. Executive power is exercised by the government. Legislative power is vested in both the government and parliament. The party system is dominated by the Chama Cha Mapinduzi. The Judiciary is independent of the executive and the legislature.

The president of the United Republic of Tanzania is the head of government.