The Museum of Occupations and Freedom Fights in Vilnius, Lithuania, was established in 1992 by order of the Minister of Culture and Education and the president of the Lithuanian Union of Political Prisoners and Deportees. In 1997, it was transferred to the Genocide and Resistance Research Centre of Lithuania. The museum is located in the former KGB headquarters across from the Lukiškės Square and is informally referred to as the KGB Museum.
The museum is dedicated mostly to collecting and exhibiting documents relating to the 50-year occupation of Lithuania by the Soviet Union, the anti-Soviet Lithuanian partisans, and the victims of the arrests, deportations, and executions that took place during this period. Before 2018, the museum was known as the Museum of Genocide Victims, reflecting a broadened definition of the genocide used by the Genocide and Resistance Research Centre. Although these events are considered a genocide only by a few historians, just a small part of the space is devoted to the Holocaust in Lithuania, the event that is universally considered a genocide. In 2018, the museum was renamed the Museum of Occupations and Freedom Fights.