Federal elections were held in Germany on 2 December 1990 to elect the members of the 12th Bundestag. They were the first competitive and universal all-German election since the elections of March 1933 which cemented Adolf Hitler's power. The result was a comprehensive victory for the governing coalition of the Christian Democratic Union/Christian Social Union and the Free Democratic Party, which was reelected to a third term.
This was the first election conducted after German reunification which took place on 3 October. Almost 150 seats had been added to represent the newly re-established eastern states of Germany without reducing the number of Western members. The euphoria following the reunification gave the ruling CDU/CSU–FDP coalition a dramatic advantage in both Western and Eastern Germany throughout the campaign.
This was the one and only election for which the 5% threshold was not applied nationwide, but separately for East Germany (including East Berlin) and West Germany (including West Berlin). As a result, while the Western The Greens failed to gain representation, an ideologically similar party from the East, Alliance 90, did. They merged to form Alliance 90/The Greens in 1993.
All change figures are relative to the pre-existing West German Bundestag.