# List of tanks of the United Kingdom

These are lists of UK tanks to enable cross-referencing between the design names and the service names.

## General Staff numbers

This is a list of UK tanks up to the end of the Second World War that received designations starting with the letter "A" - these would be designs requested by the General Staff to meet specifications issued, as opposed to private venture designs submitted by manufacturers to the General Staff
| General Staff Number | Service name |
| A1 | A1E1 Vickers 'Independent", one built but not taken into service |
| A2 | A2E1 and A2E2: Medium Tank Vickers Mk I and Medium Tank Vickers Mk I (CS version) |
| A3 | 3-man tank (Royal Ordnance Factory); Carrier MG Mk I |
| A4 | Vickers Carden-Loyd light tanks. See Light Tank Mk IV, A4E11 and A4E12 referred to the Vickers-Carden-Loyd Light Amphibious Tank |
| A5 | Vickers Carden-Loyd 3-man light tanks. See Light Tank Mk V and Light Tank Mk VI |
| A6 | A6 Medium Tank, "16 Tonners"*, led to production of the Medium Tank Mk III |
| A7 | A7 Medium Tank, 3 development tanks built, did not enter service |
| A8 | A8 Experimental Medium Tank, Project cancelled* |
| A9 | Tank, Cruiser, Mk I |
| A10 | Tank, Cruiser, Mk II |
| A11 | Tank, Infantry, Mk I, Matilda I |
| A12 | Tank, Infantry, Mk II, Matilda II |
| A13 A13 Mk.II A13 Mk.III | Tank, Cruiser, Mk III Tank, Cruiser, Mk IV Tank, Cruiser, Mk V, Covenanter |
| A14 | A14E1 'heavy' Cruiser, prototype built, did not enter service |
| A15 | Tank, Cruiser Mk VI, Crusader |
| A16 | A16E1 'heavy' Cruiser, prototype built, did not enter service |
| A17 | Tank, Light, Mk VII, Tetrarch |
| A18 | (cancelled)* |
| A19 | (cancelled)* |
| A20 | A20 Infantry Tank, prototype built, did not enter service |
| A21 | (cancelled)* |
| A22 A22D A22F | Tank, Infantry, Mk IV, Churchill Gun Carrier, 3in, Mk I, Churchill Tank, Infantry, Mk IV, Churchill VII |
| A23 | Proposed "Heavy cruiser" based on shortened Churchill tank hull design with reduced armour. Cancelled)* |
| A24 | Tank, Cruiser, Mk VII, Cavalier* |
| A25 | Tank, Light, Mk VIII, Harry Hopkins* |
| A26 | cancelled* |
| A27L | Tank, Cruiser, Mk VIII, Centaur |
| A27M | Tank, Cruiser, Mk VIII, Cromwell |
| A28 | cancelled, was to be an Infantry tank variant of Cromwell* |
| A29 | cancelled, was to be a 17-pdr armed assault tank named Clan* |
| A30 | Tank, Cruiser, Mk.VIII, Challenger, 17-pdr armed SP 17pdr, A30 (Avenger) |
| A31 | cancelled, was to be a Cromwell with heavier armour* proposed by Rolls Royce |
| A32 | cancelled, was to be a Cromwell with heavier armour similar to Churchill* |
| A33 | Tank, Heavy Assault, 'Excelsior'*, two built. A27 hull with US M6 heavy tank suspension by English Electric |
| A34 | Tank, Cruiser, Comet I |
| A35 | (cancelled alternative to A34, lengthened hull and enlarged turret ring to accommodate a 17-pdr)* |
| A36 | (cancelled)* |
| A37 | (cancelled)* |
| A38 | Tank, Infantry, Valiant* single example built |
| A39 | Tank, Heavy Assault, Tortoise*, six prototypes built |
| A40 | (cancelled, was to be a heavier A30)* |
| A41 | Tank, Cruiser, Centurion I |
| A42 | Tank, Infantry, Mk IV, Churchill VII (A22F redesignated 1945) |
| A43 | Tank, Infantry, Black Prince* |
| A44 | (cancelled, similar to A35 with thicker armour)* |
| A45 | A45 Infantry Support Tank later becoming the FV201 universal tank* |
| A46 | Light Tank |
| Project numbering moves to the FV series from A45/A46 onwards. A46 may have been the last of the British tanks to get the A series designation. ||
*Did not enter service

## Alphabetical lists

Includes the C names
* Caernarvon
* Centurion
* Challenger
* Challenger 1
* Challenger 2
* Challenger 3
* Charioteer
* Chieftain
* Churchill
* Comet
* Conqueror
* Contentious
* Conway
* Covenanter
* Cromwell
* Crusader
* Light Tank Mk VI
* Matilda I
* Matilda II
* Medium Tank A/T 1 - an amphibious tank prototype
* TOG 1
* TOG 2
* Valentine