Führerhauptquartier Werwolf was the codename used for one of Adolf Hitler's World War II Eastern Front military headquarters located in a pine forest about 12 kilometres (7.5 mi) north of Vinnytsia, in Ukraine, which was used between 1942 and 1943. It was one of a number of Führer Headquarters throughout Europe, and the most easterly ever used by Hitler in person.
The name is derived from Werwolf, which is German for werewolf. The naming scheme is in accord with other code-names given to Führerhauptquartiere during the Second World War, such as Wolfsschanze. Several were named for Hitler himself, whose nickname was Wolf, an old German form of Adolf.
The complex was located in a pine forest, about 12 kilometres (7.5 mi) north of Vinnytsia in Ukraine, between the villages of Stryzhavka and Kolo-Mikhailovka on the Kiev highway. It was built between December 1941 and June 1942 under top secret conditions. The location may have been influenced by the Nazis' proposed trans-European highway to the Crimean Peninsula, which would have connected with the site. The Wehrmacht had its regional headquarters in Vinnytsia, and the Luftwaffe had a strong presence at their airbase in Kalinovka, about 20 km away.