Gustave Marie Maurice Mesny (28 March 1886 – 19 January 1945) was a French Army general in command of the 5th North African Infantry Division who was captured during the Second World War.

On 8 and 9 November, Swiss and British media announced that the Wehrmacht general who, according to the same journalists, had participated in the Oradour-sur-Glane massacre (643 civilians executed by the 2nd SS Panzer Division Das Reich) had been shot.

The case then fell to three jurisdictions: the Reichssicherheitshauptamt (RSHA), the German Foreign Office (Auswärtiges Amt and the chief of the Kriegsgefangenenwesen (KGW, administration of prisoners of war).

Details were planned by the chief of SS Main Office Gottlob Berger and Colonel Friedrich Meurer, inspector general assigned to prisoners of war.

With the large number of authorities involved no longer ensuring the secrecy surrounding the execution of General de Boisse, Meurer arbitrarily picked Mesny.