Ludwig Schwamb (30 July 1890 in Undenheim – 23 January 1945 in Berlin) was a social-democratic jurist and politician who fought against the Nazi dictatorship in Germany as a member of the Kreisau Circle motivated by his Christian beliefs, and as a close colleague of Wilhelm Leuschner, which led to his execution as a resistance fighter.
By and by, after Leuschner, Mierendorff, and other leading social democrats were released from "protective custody" and concentration camps, Schwamb's flat slowly evolved into a conspiratorial meeting place for resistance fighters.
These included Schleswig-Holstein's later minister-president Theodor Steltzer, the later Speaker of the Bundestag Eugen Gerstenmaier, and the later Federal Minister for Displaced Persons, Refugees, and War Injured Hans Lukaschek.
Ludwig Schwamb was arrested on 23 July 1944 – three days after the failed assassination plot at the Wolf's Lair in East Prussia – in Frankfurt am Main, and after nearly six months in the Lehrter Straße Gestapo prison in Berlin, he was sentenced on 13 January 1945 to death at the Volksgerichtshof under Hitler's "blood judge" Roland Freisler.
On 31 January 1945, Ludwig Schwamb's wife Elisabeth received news – without formality or proper form of address – of the death sentence and a notification about the execution which had been carried out.