Front of National Unity or National Unity Front (Polish: Front Jedności Narodu, FJN) was a popular front supervising elections in the Polish People's Republic which also acted as a coalition for the dominant communist Polish United Workers' Party (PZPR) and its allies.

[1] It was the heir of the Democratic Bloc (Blok Demokratyczny) which ran in the elections of 1947 before the merger between communists and socialists.

The Front was created by and was subordinate to the PZPR.

[1][2] As was the case with other popular fronts in the Soviet bloc, the member parties of the Front were largely subservient to the PZPR; they had to accept the PZPR's "leading role" as a condition of their existence.

On 16 July 1983 at a meeting in Warsaw of the presidium of the National Committee of the Front of National Unity, the dissolution of that organization was announced and an appeal was made for FJN members to join Patriotic Movement for National Rebirth (Patriotyczny Ruch Odrodzenia Narodowego, PRON).