Berthold Karl Adolf von Deimling (21 March 1853 – 3 February 1944) was a general officer of the German Army during World War I.

Berthold von Deimling
Berthold von Deimling
Nickname(s)	Butcher of Ypres
Born	21 March 1853 Karlsruhe, Grand Duchy of Baden
Died	3 February 1944(1944-02-03) (aged 90) Baden-Baden, Germany
Allegiance	Baden  German Empire
Service/branch	Imperial German Army
Years of service	1871–1917
Rank	General der Infantarie
Commands held	112th Infantry Regiment Schutztruppe of German South West Africa 58th Infantry Brigade 29th Division XV Corps
Battles/wars	Herero Wars World War I Battle of Mulhouse First Battle of Ypres Battle of Verdun Battle of the Somme
Awards	Pour le Mérite

Deimling entered the army in 1871, following the Franco-Prussian War, and after working on the General Staff and in German South-West Africa rose to command a brigade of infantry in 1907.^[1]

On the outbreak of the First World War, Deimling was in command of the XV Corps near the Swiss border and commanded them during the Battle of Mulhouse.^[2] He would later command forces in the First Battle of Ypres, the Battle of Verdun and the Battle of the Somme. He was awarded the Pour le Mérite on 28 August 1916.

After the war Deimling became a committed pacifist and a member of the board of directors of the German Peace Society (DFG). He was a member of the German Democratic Party. He died in Baden-Baden.