Schloss Hamm, Medieval fortress in Hamm, Eifel region, Germany.

Schloss Hamm is a castle in Hamm in the Eifelkreis Bitburg-Prüm, Rhineland-Palatinate, developed from one of the largest medieval fortifications in the Eifel. Its Renaissance main building was erected around 1586 on medieval foundations under Gerhard von der Horst; the hall's preserved facade conceals a 1960s reconstruction after a March 1945 fire. The two outer bailey wings were rebuilt and raised during the restoration from 1887 to 1902.

The castle traces its origins to the 11th century and was substantially rebuilt during the Renaissance under Gerhard von der Horst. A fire in 1945 damaged parts of the structure, which were later restored.

The castle's chapel was rebuilt by Franz-Ferdinand von Lannoy, who replaced an earlier structure and completed the new chapel by 1700. The rebuilding of the whole complex by Friedrich-Anton von Renesse-Breitbach and Sidonie von Tornaco ended with the chapel's completion in 1902. The family name Renesse-Breitbach and Tornaco appear in the coats of arms on the main gate, rebuilt in 1893.

The exterior of the castle can be visited on foot, and paths around it allow views of the walls and towers from different angles. Since the castle is privately inhabited, access to the courtyard and buildings is limited.

The hall (Palas) that visitors see today is a 1960s reconstruction behind the preserved facade, since a fire in March 1945 almost completely destroyed the original building. The main gate, rebuilt in 1893, carries the coats of arms of the Renesse-Breitbach and Tornaco families.