Gerard Mathieu Joseph Georges, count Leman (8 January 1851 – 17 October 1920) was a Belgian general.

The German Forces had to use heavy artillery to break through the defences and capture Leman as a prisoner of War.

[1] During this period he was responsible for the military education of King Albert I of Belgium and the Filipino general Antonio Luna.

[citation needed] In August 1914, German forces under the command of General Otto von Emmich appeared before Liège and summoned it to surrender.

Leman was knocked unconscious by the bombardment, and was rescued by the Germans from under the debris of Fort Loncin.