Tiger) was a German self-propelled gun carrier of World War II that never saw service.

The decision to build this heavy artillery based on an extended chassis of the Tiger II came in June 1942.

As early as June 1942, it was decided to design self-propelled mounts for the heavier type of artillery so that the latter could be brought into action as quickly as possible, avoiding the break-down into small loads that transport by normal tractors entailed.

Concern at the length of time needed to produce conventional heavy artillery led to an order in January 1945 for the production of heavy, smooth-bore mortars, capable of firing fin-stabilized projectiles over long ranges.

These mortars automatically returned to a 40° elevation for loading, the Grille, mounting this weapon, was to have four hydraulic jacks for stability when firing.