During World War II, the station was a prime target due to its strategic location and its large marshalling yard and suffered from numerous air attacks. Most of these were carried out by the British RAF Bomber Command. Over 80% of Hamm lay in ruins after the war, and the station was no exception. Passenger services resumed on 18 June 1945 on the line to Dortmund and Duisburg, and on June 20 of the same year on the lines to Bielefeld, Münster and Soest.