Socialist Unity Party of West Berlin (in German: Sozialistische Einheitspartei Westberlins) was a communist party in West Berlin. The party was founded on November 24 1962 when the West Berlin local organization of the Socialist Unity Party of Germany (SED) was separated from the main party. Until 1969 the party was known as the Socialist Unity Party of Germany - West Berlin (Sozialistische Einheitspartei Deutschlands - Westberlin). Gerhard Danelius was the chairman of the party until 1978.

The youth league of the SEW was known as the Socialist Youth League Karl Liebknecht. The SEW had a daily newspaper called Die Wahrheit.

At the time of German reunification, the SEW was amalgamated into the Party of Democratic Socialism.

Electoral results to the Abgeordnetenhaus (House of Representatives) of West Berlin

• 1954 - 41.375 (2,7 %, as SED)

• 1958 - 31.572 (2,0 %, as SED)

• 1963 - 20.929 (1,4 %)

• 1967 - 29.925 (2,0 %)

• 1971 - 33.845 (2,3 %)

• 1975 - 25.105 (1,8 %)

• 1979 - 13.744 (1,1 %)

• 1981 - 8.176 (0,6 %)

• 1985 - 7.731 (0,6 %)

• 1989 - 6.875 (0,6 %)

Category:Defunct political parties in GermanyCategory:Communist parties in GermanyCategory:Political parties established in 1962Category:Articles lacking sources (Erik9bot)
da:Sozialistische Einheitspartei Westberlinsde:Sozialistische Einheitspartei Westberlinsmk:Партија за социјалистичко единство на Западен Берлинnl:Sozialistische Einheitspartei Westberlinsno:Sozialistische Einheitspartei Westberlinspl:Socjalistyczna Partia Jedności Berlina Zachodniego