Westerplatte-Museum, Military history museum in Gdańsk, Poland.

The Westerplatte Museum (Muzeum Westerplatte i Wojny 1939) is a planned museum in Gdańsk, established on 22 December 2015 as a national cultural institution. It is to present the defence of the Westerplatte and the fate of the Military Transit Depot from its creation to the end of the 20th century. A groundbreaking ceremony for its building took place on 25 April 2026, with completion planned for 2030.

The museum was established by decree of the Minister of Culture and National Heritage on 22 December 2015, with its statute granted on 9 March 2016. On 15 April 2016 the minister announced plans to merge it with the Museum of the Second World War; after court proceedings, the merger was announced on 6 April 2017 and historian Karol Nawrocki was appointed director. A groundbreaking ceremony for the museum building took place on 25 April 2026, with completion planned for 2030.

The museum's stated aim is to document and promote the history of the defence of Westerplatte and the fate of the Military Transit Depot from its founding to the end of the 20th century. On 1 September 2016 it co-organised an open-air Independence Concert titled "Westerplatte" beside the relics of the "Wał" outpost, announced as a recurring event.

You can easily reach the site from central Gdańsk and walk around the entire peninsula on foot. It is best to wear comfortable shoes since you will walk a lot and the paths can be uneven.

The museum is still in organization: it was founded on 22 December 2015, and after a merger with the Museum of the Second World War in April 2017, construction of its Westerplatte branch began only on 25 April 2026, with completion planned for 2030. A permanent exhibition titled "A Seaside Resort, a Bastion, a Symbol" is planned for the Westerplatte site.