Hamm (Westf) Hauptbahnhof (often abbreviated Hamm (Westf) or simply Hamm (W)) is a railway station situated in the city of Hamm in the German state of North Rhine-Westphalia. It is notable for its station building inspired by art deco and Gründerzeit building styles. The station is one of the important InterCityExpress rail hubs in the eastern Ruhr area and is among the high-profile buildings of Hamm. Until the decline of rail freight after the Second World War, it featured one of Europe's largest marshalling yards.

Hamm is a city in North Rhine-Westphalia, Germany. It is located in the northeastern part of the Ruhr area. As of 2016 its population was 179,397. The city is situated between the A1 motorway and A2 motorway. Hamm railway station is an important hub for rail transport and renowned for its distinctive station building.