This is a list of corps serving within the armies of the British Empire during the Second World War.

A Corps was either a temporary military formation created for combat, or an "administrative" formation that coordinated specialist military functions across a national military force. A combat Corps was composed of specialist units from various "administrative" Corps from combat arms, combat support arms and combat services. Combat Arms were formation sized units from the Corps of infantry and armour, usually 2 or more divisions in strength. Combat Support Arms were smaller units from the Corps of artillery, engineers, signals, intelligence or reconnaissance. Combat Services were units from the Corps of medicine, general services, ordnance, pioneers, logistics and other more specialized functions. For example, I Canadian Corps consisted of 1 infantry division, 1 armour division, 1 armour brigade and Corps Troops (20 plus companies from the Corps of engineers, signals, medicine, military police, etc...)

Military formations within the British Empire were composed of a changing mix of units from across Britain, its colonies and the dominions. As a result, military formations within the Empire and Commonwealth are not easily attributable to specific Imperial or national entities and naming conventions do not necessarily correlate with modern country names.

British Army

Field Corps

Combat Arms

Combat Support Arms

Combat Services

Other

Imperial and Dominion

Australian Army

Field Corps

Combat Arms

Combat Support Arms

Combat Services

Other

Canadian Army

Field Corps

Combat Arms

Combat Support Arms

Combat Services

Other

Army of India

Field Corps

Combat Arms

Combat Support Arms

Combat Services

New Zealand Military Forces

Field Corps

Combat Arms

Combat Support Arms^[4]

Combat Services^[5]

South African Army

Field Corps

Combat Arms

Combat Support Arms

Combat Services

Colonies and Protectorates

Field Corps (not all standard corps size)

Combat Support Arms

Combat Services ^[6][7]