Reserve-Korps / VIII RK) was a corps level command of the German Army in World War I. VIII Reserve Corps was formed on the outbreak of the war in August 1914[1] as part of the mobilisation of the Army.

It was initially commanded by General der Infanterie Wilhelm Freiherr von Egloffstein.

[2] It was still in existence at the end of the war[3] in the 7th Army, Heeresgruppe Deutscher Kronprinz on the Western Front.

In general, Reserve Corps and Reserve Divisions were weaker than their active counterparts In summary, VIII Reserve Corps mobilised with 21 infantry battalions, 4 machine gun companies (24 machine guns), 6 cavalry squadrons, 12 field artillery batteries (72 guns) and 3 pioneer companies.

On mobilisation, VIII Reserve Corps was assigned to the 4th Army forming part of the centre of the forces for the Schlieffen Plan offensive in August 1914.