1the name under which the Parliament of Romania was defined by the 1866 and 1923 Constitutions;2after World War II the Constitution of 1923 was reestablished; due to the communist occupation of the country the Senate was suspended; The Great National Assembly (Romanian: Marea Adunare Națională; MAN) was the supreme body of state power of the Socialist Republic of Romania.

The Great National Assembly was the only branch of government in Romania, and per the principle of unified power, all state organs were subservient to it.

The MAN had the power to, among other things, amend the constitution and appoint and depose the Supreme Commander of the Romanian People's Army.

Combined with the MAN's infrequent sessions, this meant that State Council decisions de facto had the force of law.

In emergencies, the State Council assumed the MAN's powers to control the budget and economic plan, appoint and dismiss ministers and justices of the Supreme Court, mobilize the armed forces and declare war.