The VI Army Corps / VI AK (German: VI. Armee-Korps) was a corps level command of the Prussian and then the Imperial German Armies from the 19th Century to World War I.

VI AK originated in 1815 as the General Command for the Province of Silesia, with headquarters in Breslau.

The Corps served in the Austro-Prussian War. During the Franco-Prussian War it was assigned to the 3rd Army.

In peacetime the Corps was assigned to the VIII Army Inspectorate but joined the 4th Army at the start of the First World War. It was still in existence at the end of the war. The Corps was disbanded with the demobilisation of the German Army after World War I.

VI Corps fought in the Austro-Prussian War in 1866, seeing action in the Battle of Königgrätz.

During the Franco-Prussian War, the Corps was initially held back in Silesia against the possibility of intervention by Austria-Hungary. It only moved up to join the 3rd Army in August 1870. It then participated in the Siege of Paris and the Battle of Chevilly.

The 25 peacetime Corps of the German Army (Guards, I - XXI, I - III Bavarian) had a reasonably standardised organisation. Each consisted of two divisions with usually two infantry brigades, one field artillery brigade and a cavalry brigade each. Each brigade normally consisted of two regiments of the appropriate type, so each Corps normally commanded 8 infantry, 4 field artillery and 4 cavalry regiments. There were exceptions to this rule:

Each Corps also directly controlled a number of other units. This could include one or more