Petru Groza of the Ploughmen's Front became the first prime minister of the Communist Party-dominated government of Romania.

Petru Groza was a Romanian politician, best known as the first Prime Minister of the Communist Party-dominated government under Soviet occupation during the early stages of the Communist regime in Romania, and later as the President of the Presidium of the Great National Assembly from 1952 until his death in 1958.

The Ploughmen's Front was a Romanian left-wing agrarian-inspired political organisation of ploughmen, founded at Deva in 1933 and led by Petru Groza. At its peak in 1946, the Front had over 1 million members.

The prime minister of Romania, officially the prime minister of the Government of Romania, is the head of the Government of Romania. Initially, the office was styled President of the Council of Ministers, when the term "Government" included more than the Cabinet, and the Cabinet was called the Council of Ministers. The title was officially changed to Prime Minister by the 1965 Constitution of Romania during the communist regime.

A communist party is a political party that seeks to realize the socio-economic goals of communism. The term "communist party" was popularized by the title of The Manifesto of the Communist Party (1848) by Karl Marx and Friedrich Engels. As a vanguard party, the communist party guides the political education and development of the working class (proletariat). As a ruling party, the communist party exercises power through the dictatorship of the proletariat. Vladimir Lenin developed the idea of the communist party as the revolutionary vanguard, when the socialist movement in Imperial Russia was divided into ideologically opposed factions, the Bolshevik faction and the Menshevik faction. To be politically effective, Lenin proposed a small vanguard party managed with democratic centralism which allowed the centralized command of a disciplined cadre of professional revolutionaries. Once a policy was agreed upon, realizing political goals required every Bolshevik's total commitment to the agreed-upon policy.