German submarine U-675

German submarine U-675 was a Type VIIC U-boat of Nazi Germany's Kriegsmarine during World War II. The submarine was laid down on 9 April 1942 at the Howaldtswerke yard at Hamburg, launched on 8 May 1943, and commissioned on 14 July 1943 under the command of Oberleutnant zur See Karl-Heinz Sammler.

Attached to 5th U-boat Flotilla based at Kiel, U-675 completed her training period on 30 April 1944 and was assigned to front-line service.

Service history
On the first and final patrol, U-675 was detected on 24 May 1944 west of Ålesund by Sunderland R of No. 4 (Coastal) Operational Training Unit RAF. The British aircraft attacked with six Mark XI Torpex depth charges, sinking the U-boat with all hands.