Ernst-Thälmann Memorial in Weimar, Bronze memorial statue in Weimar, Germany.

The Ernst-Thälmann Memorial in Weimar is a 3.20-metre bronze statue of KPD chairman Ernst Thälmann as a speaker, his left fist pointing down and his right fist raised. It stands on a tall travertine pedestal within a semicircular 2.5-metre wall bearing the inscription "AUS EUREM OPFERTOD WÄCHST UNSERE SOZIALISTISCHE TAT." The ensemble was designed by architects Otto Englberger and Siegfried Tschierschky.

In January 1946 the square, formerly named after state minister Christian Bernhard von Watzdorf, was renamed Platz der 51000 (later corrected to 56000) on the initiative of mayor Faust. A planned "Völkerdenkmal der Widerstandsbewegung" was never built; instead the Thälmann memorial was inaugurated on 17 August 1958, after the 1870–71 war memorial that had stood there was removed. The 3.20 m bronze was cast by Pirner & Franz in Dresden from a model by sculptor Walter Arnold and was the first Thälmann monument of the GDR.

The figure is Ernst Thälmann, KPD chairman from 1925 to 1933, shown as an orator: his left fist points to the ground, his raised right hand makes the speech gesture. The 2.5-metre wall behind him carries Max Zimmering's sentence in large capitals: "AUS EUREM OPFERTOD WÄCHST UNSERE SOZIALISTISCHE TAT."

The memorial stands on Buchenwaldplatz in Weimar's Nordvorstadt, north of the city centre. The bronze figure on its travertine base and the 2.5-metre wall behind it can be viewed from the open square at any time. The travertine floor slabs and the surrounding residential buildings frame the site.

The square was renamed Platz der 51000 in January 1946 on the initiative of mayor Faust, later corrected to Platz der 56000, before becoming Buchenwaldplatz. A planned "Völkerdenkmal der Widerstandsbewegung" was never built; the Thälmann figure took its place in 1958. The earlier Kriegerdenkmal for the fallen of the Franco-Prussian War of 1870–71 was removed from the square.