German submarine U-198, was a Type IXD2 U-boat which fought in World War II. She was built by the Deschimag AG Weser in Bremen. She was laid down on 1 August 1941 as 'werk' 1044, launched on 15 June 1942 and commissioned on 3 November under Kapitän zur See Werner Hartmann. The boat was sunk on 12 August 1944 near the Seychelles, by depth charges from a British frigate and an Indian sloop. The submarine is credited with sinking eleven ships, for a total of 59,690 GRT.