German submarine U-225 was a Type VIIC U-boat of Nazi Germany's Kriegsmarine during World War II.
Ordered on 15 August 1940 from the Germaniawerft shipyard in Kiel, she was laid down on 3 September 1941 as yard number 655, launched on 28 May 1942 and commissioned on 11 July.
German Type VIIC submarines were preceded by the shorter Type VIIB submarines. U-225 had a displacement of 769t when at the surface and 871t while submerged. She had a total length of 67.1m (220.1feet), a pressure hull length of 50.5m (165.7feet), a beam of 6.2m (20.3feet), a height of 9.6m (31.5feet), and a draught of 4.74m (15.55feet). The submarine was powered by two Germaniawerft F46 four-stroke, six-cylinder supercharged diesel engines producing a total of NaNPS for use while surfaced, two AEG GU 460/8–27 double-acting electric motors producing a total of 750PS for use while submerged. She had two shafts and two 1.23abbr=onNaNabbr=on propellers. The boat was capable of operating at depths of up to .
The submarine had a maximum surface speed of and a maximum submerged speed of . When submerged, the boat could operate for at ; when surfaced, she could travel at . U-225 was fitted with five 53.30NaN0 torpedo tubes (four fitted at the bow and one at the stern), fourteen torpedoes, one 8.82NaN2 SK C/35 naval gun, 220 rounds, and an anti-aircraft gun. The boat had a complement of between forty-four and sixty.
She departed from Kiel on her first patrol on 5 December 1942. It was during this patrol that she successfully attacked five vessels in convoy ONS 154. She returned to Brest on 8 January 1943.
Less than one month later, she departed from Brest on her second and final patrol on 2 February 1943. After just 21 days, she was sunk.
U-225 was attacked and sunk with depth charges by with the loss of all 46 crew on 22 February 1943 at position 48.6167°N -65°W.
| Date | Ship Name | Nationality | Tonnage (GRT) | Fate[1] | |
|---|---|---|---|---|---|
| 27 December 1942 | Scottish Heather |  United Kingdom | 7,087 | Damaged | |
| 28 December 1942 | Melmore Head | United Kingdom | 5,273 | Sunk | |
| 28 December 1942 | Ville de Rouen | United Kingdom | 5,598 | Damaged | |
| 28 December 1942 | President Francqui |  Belgium | 4,919 | Damaged | |
| 28 December 1942 | Empire Shackleton | United Kingdom | 7,068 | Damaged |