The Lange or Langer Stall (literally Long Stables) was a timber framed riding school and drill hall in Potsdam, built in 1734 under Frederick William I of Prussia. Almost all of it was destroyed in the Second World War, with the only survivor being the gateway facade commissioned by Frederick the Great and designed by Georg Christian Unger.
During the bombing of Potsdam on the night of 14-15 April 1945 the Langer Stall caught fire, completely destroying the large timber-framed building. The neighbouring Garrison Church was not hit by the bombs, but was ignited by flying sparks from the Stall and also burned down completely.