Erik Molnár (16 December 1894 – 8 August 1966) was a Hungarian communist politician, lawyer, economist and historian who served as Minister of Foreign Affairs twice: from 1947 to 1948 and from 1952 to 1953.

As a prisoner of war, Molnár met with the communist ideas in a prisoner-of-war camp in Far East Asia.

After that, he joined the illegal Hungarian Communist Party and worked alongside his younger brother, René.

He published a lot of articles for the illegal communist newspapers (Gondolat, Társadalmi Szemle, Korunk).

After 1945, Molnár dealt with the Hungarian prehistory and the feudalism with the questions of age social history, the ideological antecedents of the historical materialism and with his philosophical basis problems, the questions of the contemporary capitalism, dealt with the development of the nationalism and its development furthermore.