SC Union 06 Berlin traces its roots back to the
FC Olympia Oberschöneweide, a club formed in 1906. Renamed to
SC Union Oberschöneweide the predecessor club won the Berlin championship in 1920, 1923, 1940 and 1948 as well as the
Berlin Cup in 1947 and 1948. ''Union's
greatest success however came in the 1923 German football championship where it reached the final but lost 3–0 to Hamburger SV. After the Second World War the club reformed as Sportgemeinde Oberschöneweide. It took part in the 1948 German football championship but lost to 7–0 FC St. Pauli in the quarter-finals. Union
slowly declined from there. It finished third in the league in 1954 and 1957, but after that, dropped into the relegation zone. Support from the eastern part of Berlin dried up completely after the construction of the Berlin Wall. The club was relegated from the Oberliga in 1960, won promotion back in 1961 and was relegated again in 1962. and, in any case, would have struggled financially to compete in professional football. The club made its one and only appearance in the DFB-Pokal in 1976–77 but lost 12–1 to VfL Osnabrück in the first round. Union'' was relegated from what was now the tier three Amateur-Oberliga Berlin in 1982. It briefly returned to the league in the 1984–85 season but was relegated again straight away and never returned to the highest level of play in Berlin again. Population changes in the suburb of
Moabit, their home district, have led to the integration of many non-German residents in the club, something the club has won praise and awards for in the past. On the field, after its descent to the
Kreisliga B, the club recovered, returning to the tier seven
Landesliga Berlin in 2014 but being relegated from this level again in 2016. ==Honours==