List of prototype World War II combat vehicles
This list contains combat vehicles which never left the design phase or had an extremely limited production (usually < 10).
Australia
Canada
Germany
- Entwicklung series, a comprehensive redesign of German armor from small tracked vehicles to a 100-ton superheavy tank. Only a single E-100 chassis was completed
- Neubaufahrzeug, pre-war heavy tank design, five built.
- Panther II, development of the Panzerkampfwagen V "Panther". A single chassis was built.
- Panzerkampfwagen VII "Löwe", a super-heavy tank project that never reached prototype stage.
- Panzerkampfwagen VIII "Maus", a superheavy tank. Two prototypes built.
- Panzerkampfwagen IX. Paper project.
- Panzerkampfwagen X. Paper project.
- P. 1000 "Ratte". Paper project.
- P. 1500 "Monster" . Paper project.
- 12.8 cm Selbstfahrlafette auf VK3001(H) "Sturer Emil", self-propelled anti-tank gun mounting the 128 PaK. Two built and used in front-line combat.
- Heuschrecke 10, Krupp's design for a new self-propelled artillery gun.
Hungary
- 44M Tas heavy tank, Weiss Manfred's design for a new medium/heavy tank.
- 44M Tas Rohamloveg, Weiss Manfred's design for a new self-propelled assault gun/tank destroyer based on 44M Tas medium/heavytank.
Italy
- P43 heavy tank, Fiat Ansaldo's design for a new heavy tank.
- P43 Bis heavy tank, Fiat Ansaldo's design for a new heavy tank.
Japan
- O-I, superheavy tank design in the 130-ton range. Only one supposedly built.
Poland
Soviet Union
- Antonov A-40
- T-43
- SMK tank
- T-100 tank
- SU-100Y
- SU-14
- PPG tankette
- Object 416
- IS-7 Heavy tank
- KV-4 Heavy tank
United Kingdom
- Tank, Heavy, TOG I
- Tank Heavy, TOG II
- Tank, Heavy Assault, "Excelsior" A33
- Tank, Infantry, Valiant (A38)
- Tank, Heavy Assault, Tortoise (A39)
- Tank, Infantry, Black Prince (A43)
United States
- Medium Tank T20
- Heavy Tank M6
- Assault Tank T14
- T28 Super Heavy Tank
- T30 Heavy Tank
- T34 Heavy Tank
- T71 Light Tank