Kriegsmarinewerft (or, prior to 1935, Reichsmarinewerft) Wilhelmshaven was, between 1918 and 1945, a naval shipyard in the German Navy's extensive base at Wilhelmshaven, (80 miles (130 km) west of Hamburg).

On 18 December 1939, 12 out of 22 RAF's Wellington bombers were shot down in an air battle over the naval base.

[1] Personnel were often assigned to organizing naval facilities in occupied countries, e.g., in the ports of Lorient, Brest and St. Nazaire.

For a time, the yard refurbished ships to be sent to the Allies as war reparations but, from 1946, most buildings and equipment were either dismantled or blown up.

Since 1957, part of the site has housed an arsenal for the German Navy (Deutsche Bundesmarine).