German Democratic Union
The German Democratic Union (DDU) was a left-wing political party. The party was only active in Saarland. The DDU was founded in 1955. The DDU won two seats in the .  and  became members of the state parliament.

After the election, the party joined with the . At the , they failed the re-entry in the state parliament as the state association of the DFU.

Defunct regional parties in Germany
Political parties in Saar
1955 establishments in Saar
Political parties established in 1955
1961 disestablishments in Germany
Political parties disestablished in 1961