SMS Hamburg ("His Majesty's Ship Hamburg") was the second of seven Bremen-class cruisers of the Imperial German Navy, named after the city of Hamburg. She was begun by AG Vulcan Stettin in Stettin in 1902, launched on 25 July 1903 and commissioned on 8 March 1904. Throughout her over 40-year long career, she served with the Imperial Navy, the Reichsmarine, and the Kriegsmarine.