Fort V-a in Kaliningrad, 19th-century fortification in Kaliningrad, Russia.

Fort V-a is a 19th-century fortified structure in Kaliningrad with an elongated hexagonal design surrounded by thick brick walls and a deep defensive moat. The complex contains underground casemates and tunnel systems that run beneath the ramparts.

The fortress was built in the 1870s and formed part of the modern defensive ring around Königsberg. During the Second World War it saw intense fighting before being captured in 1945.

The fort is named after Karl von Lendorf, a Prussian general who fought in the wars against Napoleon. As an intermediate work, it differs from other forts in the ring by its smaller plan and fewer casemates, and it has no combat casemates at all. Today the site is leased long-term to the military-patriotic club VPK Vityazi, whose volunteers are clearing the grounds.

Access is closed and possible only by prior arrangement with the KROO "VPK Vityazi", which holds the fort on a long-term lease and is clearing its grounds. There are no facilities on site, so bring water and wear sturdy shoes for uneven ground.

Fort V-a was an intermediate work, so it differs from the other forts of Königsberg: it covers a smaller area on plan and has fewer casemates, and it has no combat casemates at all. It is named after Karl von Lendorf, a Prussian general who fought in the war against Napoleon.