The TOG 2, officially known as the Heavy Tank, TOG II, was a British super-heavy tank design produced during the early stages of World War II for a scenario where the battlefields of northern France devolved into a morass of mud, trenches, and craters as had happened during World War I.

[5] The second design to come out of the Special Vehicle Development Committee (nicknamed "The Old Gang" as it was made up of people who had worked on the original British tanks of the First World War) the TOG 2 was similar to the TOG 1 and kept many of its features.

Ordered in 1940, built by Foster's of Lincoln, the prototype ran for the first time in March 1941.

In April 1941 an enquiry was made by the Deputy Director-General of Tanks and Transport to the English Electric Company see if 100 could be produced.

It was modified to include, among other things, a change from the unsprung tracks to a torsion bar suspension and went through successful trials in May 1943.