The Tiger II was a German heavy tank of the Second World War. The final official German designation was Panzerkampfwagen Tiger Ausf. B,[a] often shortened to Tiger B.[9] The ordnance inventory designation was Sd.Kfz. 182.[9] (Sd.Kfz. 267 and 268 for command vehicles). It was also known informally as the Königstiger[9] (German for Bengal tiger, lit. 'King Tiger').[10][11] Contemporaneous Allied soldiers often called it the King Tiger or Royal Tiger.[citation needed]

The Tiger II was the successor to the Tiger I, combining the latter's thick armour with the armour sloping used on the Panther medium tank. It was the costliest German tank to produce at the time. The tank weighed almost 70 tonnes, and was protected by 100 to 185 mm (3.9 to 7.3 in) of armour to the front.[12] It was armed with the long barrelled (71 calibres) 8.8 cm KwK 43 anti-tank cannon. The chassis was also the basis for the Jagdtiger turretless Jagdpanzer anti-tank vehicle.[13]

The Tiger II was issued to heavy tank battalions of the Army and the Waffen-SS. It was first used in combat by 503rd Heavy Panzer Battalion during the Allied invasion of Normandy on 11 July 1944;[14] on the Eastern Front, the first unit to be outfitted with the Tiger II was the 501st Heavy Panzer Battalion.[15] Due to heavy Allied bombing, only 492 were produced.