List of tank main guns

This is a list of tank main guns which are the primary weapon of combat for either a light, medium or heavy tank. Many tanks have other weapons installed in them such as machine guns, autocannons and small calibre mortars. The list does not include weapons installed in self-propelled artillery vehicles such as assault guns or tank destroyers that usually lack turrets. This is due to the unique nature of turreted tank tactics, its design and operation.