War Museum of Thessaloniki, Military museum in Thessaloniki, Greece

The War Museum of Thessaloniki occupies a building designed by Vitaliano Poselli and erected between 1900 and 1902. Its permanent collections cover Greek military history from the Balkan Wars and World War I through the Asia Minor Campaign, the Greco-Italian War, the Battle of Crete, the Occupation and Resistance, and Greek participation in Allied operations in North Africa, Italy and Normandy. Displays include uniforms of the Hellenic army, air force and navy, weapons, artillery and ship replicas, photographs, maps, paintings and postcards.

The building was constructed between 1900 and 1902 following architect Vitaliano Poselli's design as a military administrative building. It was converted and opened as a museum in October 2000.

The museum shows how Greece views and preserves its military past. Visitors see displays that reveal the role warfare played in shaping the nation and how these events affected people's lives.

The museum is best reached on foot, and most visitors should plan at least 2 hours for a full visit. The site is well-marked, and parking is available nearby, though it may be tight during peak summer months.

The building served as the interrogation and torture centre of the dictatorial KYP (Central Intelligence Service of Thessaloniki) during the junta. A memorial space to the anti-dictatorship resistance, opened in 2017, occupies a room and recalls that Georgios Tsarouchas, former EDA MP, was tortured and killed there on 9 May 1968.