# List of Operation Deadlight U-boats

116 U-boats were scuttled or otherwise sunk in 1945 and 1946 in Operation Deadlight. They had been surrendered by the Kriegsmarine to allied forces at the end of the Second World War. They were sunk by a variety of air attacks, torpedoes and naval gunfire in locations off the Irish and Scottish coasts, while a number sank while under tow.

## Table of Operation Deadlight U-boats

| Boat | Type | Surrender Date | Surrender location | Date of sinking | Location | Departure point | Method of Destruction | Remarks |
| U-143 | IID | 5 May 1945 | Heligoland, Germany | 22 December 1945 | 55.58N 09.35W | Loch Ryan | Naval gunfire | Tow parted, sunk by HMS Onslow |
| U-145 | IID | 5 May 1945 | Heligoland, Germany | 22 December 1945 | 55.47N 09.56W | Loch Ryan | Naval gunfire | Tow parted, sunk by HMS Onslow |
| U-149 | IID | 5 May 1945 | Heligoland, Germany | 21 December 1945 | 55.40N 08.00W | Loch Ryan | Naval gunfire | Tow parted, sunk by ORP Piorun |
| U-150 | IID | 5 May 1945 | Heligoland, Germany | 21 December 1945 | 56.04N 09.35W | Loch Ryan | Naval gunfire | HMS Onslaught and HMS Powey |
| U-155 | IXC | 5 May 1945 | Baring Bay, near Fredericia, Denmark | 21 December 1945 | 55.35N 07.39W | Loch Ryan | Naval gunfire | Tow parted, sunk by ORP Błyskawica |
| U-170 | IXC/40 | 9 May 1945 | Horten Naval Base, Norway | 30 November 1945 | 55.44N 07.53W | Loch Ryan | Naval gunfire | HMS Onslaught and ORP Piorun |
| U-218 | VIID | 12 May 1945 | Bergen, Norway | 4 December 1945 | 55.28N 07.18W | Loch Ryan | | Foundered in tow |
| U-244 | VIIC | 14 May 1945 | Loch Eriboll, UK | 14 May 1945 | 55.46N 08.32W | Loch Eriboll | Naval gunfire | Tow parted, sunk by ORP Piorun |
| U-245 | VIIC | 9 May 1945 | Bergen, Norway | 7 December 1945 | 55.25N 06.19W | Loch Ryan | | Foundered in tow |
| U-249 | VIIC | 10 May 1945 | Portland, UK | 13 December 1945 | 56.10N 10.05W | Loch Ryan | Torpedo | Sunk by submarine HMS Tantivy |
| U-255 | VIIC | 17 May 1945 | Loch Eriboll, UK | 13 December 1945 | 55.50N 10.05W | Loch Eriboll | Rockets from British aircraft | |
| U-278 | VIIC | 9 May 1945 | Narvik, Norway | 31 December 1945 | 55.44N 08.21W | Lisahally | Naval gunfire | HMS Onslow and ORP Błyskawica |
| U-281 | VIIC | 9 May 1945 | Kristiansand–Süd, Norway | 30 November 1945 | 55.50N 10.05W | Loch Ryan | | Foundered in tow |
| U-291 | VIIC | 5 May 1945 | Cuxhaven, Germany | 20 December 1945 | 55.50N 09.08W | Loch Ryan | Naval gunfire | HMS Onslaught |
| U-293 | VIIC/41 | 11 May 1945 | Loch Eriboll, UK | 13 December 1945 | 55.50N 10.05W | Loch Ryan | Naval gunfire | HMS Orwell |
| U-294 | VIIC/41 | 9 May 1945 | Narvik, Norway | 31 December 1945 | 55.44N 08.40W | Lisahally | Naval gunfire | HMS Offa and HMS Zealous |
| U-295 | VIIC/41 | 9 May 1945 | Narvik, Norway | 17 December 1945 | 56.14N 10.37W | Loch Ryan | Naval gunfire | ORP Błyskawica |
| U-298 | VIIC/41 | 9 May 1945 | Bergen, Norway | 29 November 1945 | 55.35N 07.45W | Loch Ryan | Naval gunfire | HMS Onslow and HMS Cubitt |
| U-299 | VIIC/41 | 9 May 1945 | Kristiansand Süd, Norway | 4 December 1945 | 55.38N 07.54W | Loch Ryan | Naval gunfire | HMS Onslow and HMS Cubitt |
| U-312 | VIIC | 9 May 1945 | Narvik, Norway | 29 November 1945 | 55.35N 07.54W | Lisahally | Naval gunfire | HMS Onslow |
| U-313 | VIIC | 9 May 1945 | Narvik, Norway | 27 December 1945 | 55.40N 08.24W | Loch Ryan | | Foundered in tow |
| U-318 | VIIC/41 | 9 May 1945 | Narvik, Norway | 21 December 1945 | 55.47N 08.30W | Loch Ryan | Naval gunfire | ORP Piorun |
| U-328 | VIIC/41 | 9 May 1945 | Bergen, Norway | 30 November 1945 | 55.50N 10.05W | Loch Ryan | Aircraft | Fleet Air Arm |
| U-363 | VIIC | 9 May 1945 | Narvik, Norway | 31 December 1945 | 55.45N 08.18W | Lisahally | Naval gunfire | HMS Onslaught and ORP Błyskawica |
| U-368 | VIIC | 5 May 1945 | Heligoland, Germany | 17 December 1945 | 56.14N 10.37W | Loch Ryan | Naval gunfire | |
| U-369 | VIIC | 9 May 1945 | Kristiansand, Norway | 30 November 1945 | 55.31N 07.27W | Scapa Flow | | |
| U-427 | VIIC | 9 May 1945 | Narvik, Norway | 21 December 1945 | 56.04N 09.35W | Loch Ryan | Unknown causes | |
| U-481 | VIIC | 9 May 1945 | Narvik, Norway | 30 November 1945 | 56.11N 10.00W | Loch Ryan | Unknown causes | |
| U-483 | VIIC | 9 May 1945 | Trondheim, Norway | 30 November 1945 | 56.10N 10.05W | Loch Ryan | Unknown causes | |
| U-485 | VIIC | 12 May 1945 | Gibraltar | 8 December 1945 | 56.10N 10.05W | Loch Ryan | Unknown causes | |
| U-516 | IXC | 14 May 1945 | Loch Eriboll, UK | 2 January 1946 | 56.06N 09.00W | Lisahally | | |
| U-532 | IXC/40 | 13 May 1945 | Loch Eriboll, UK | 9 December 1945 | 56.08N 10.07W | Loch Ryan | Torpedo | Sunk by submarine HMS Tantivy |
| U-539 | IXC/40 | 9 May 1945 | Bergen, Norway | 4 December 1945 | 55.38N 07.57W | Loch Ryan | | Foundered in tow |
| U-541 | IXC/40 | 12 May 1945 | Gibraltar | 5 January 1946 | 55.38N 07.35W | Lisahally | Naval gunfire | Tow parted, sunk by HMS Onslaught and HMS Zealous |
| U-637 | VIIC | 9 May 1945 | Stavanger, Norway | 21 December 1945 | 55.35N 07.46W | Loch Ryan | | Foundered in tow |
| U-668 | VIIC | 9 May 1945 | Narvik, Norway | 31 December 1945 | 56.03N 09.24W | Lisahally | Naval gunfire | Tow parted, sunk by HMS Onslaught |
| U-680 | VIIC | 5 May 1945 | Baring Bay, near Fredericia, Denmark | 28 December 1945 | 55.24N 06.29W | Loch Ryan | Naval gunfire | HMS Onslaught |
| U-716 | VIIC | 9 May 1945 | Narvik, Norway | 11 December 1945 | 55.50N 10.05W | Loch Ryan | Air attack | |
| U-720 | VIIC | 5 May 1945 | Heligoland, Germany | 21 December 1945 | 56.04N 09.35W | Loch Ryan | Naval gunfire | |
| U-739 | VIIC | 13 May 1945 | Emden, Germany | 16 December 1945 | 56.10N 10.05W | Loch Ryan | Air attack | |
| U-760 | VIIC | 8 September 1943 | Vigo, Spain | 13 December 1945 | 55.50N 10.05W | Ferrol, Spain | | This boat had been interned in Spain |
| U-764 | VIIC | 14 May 1945 | Loch Eriboll, UK | 2 February 1946 | 56.06N 09.00W | Lisahally | Naval gunfire | ORP Piorun |
| U-773 | VIIC | 9 May 1945 | Trondheim, Norway | 8 December 1945 | 56.10N 10.05W | Loch Ryan | Unknown causes | |
| U-775 | VIIC | 9 May 1945 | Trondheim, Norway | 8 December 1945 | 55.40N 08.25W | Loch Ryan | Naval gunfire | |
| U-776 | VIIC | 16 May 1945 | Portland, UK | 3 December 1945 | 55.08N 05.30W | Portland, UK | | Foundered and sank |
| U-778 | VIIC | 9 May 1945 | Bergen, Norway | 4 December 1945 | 55.32N 07.70W | Loch Ryan | | Foundered and sank |
| U-779 | VIIC | 5 May 1945 | Cuxhaven, Germany | 17 December 1945 | 55.50N 10.05W | Loch Ryan | Naval gunfire | HMS Onslow and HMS Cubitt |
| U-802 | IXC/40 | 11 May 1945 | Loch Eriboll, UK | 31 December 1945 | 55.30N 08.25W | Lisahally | | Foundered in tow |
| U-806 | IXC/40 | 6 May 1945 | Aarhus, Denmark | 21 December 1945 | 55.44N 8.18W | Loch Ryan | Naval gunfire | ORP Błyskawica |
| U-825 | VIIC | 13 May 1945 | Loch Eriboll, UK | 3 January 1946 | 55.31N 07.30W | Lisahally | Unknown causes | |
| U-826 | VIIC | 11 May 1945 | Loch Eriboll, UK | 1 December 1945 | 56.10N 10.05W | Loch Ryan | Unknown causes | |
| U-861 | IXD2 | 9 May 1945 | Trondheim, Norway | 31 December 1945 | 55.25N 07.15W | Lisahally | | |
| U-868 | IXC/40 | 9 May 1945 | Bergen, Norway | 30 November 1945 | 55.48N 08.33W | Loch Ryan | | |
| U-874 | IXD2 | 9 May 1945 | Horten, Norway | 31 December 1945 | 55.74N 09.27W | Lisahally | Naval gunfire | HMS Offa |
| U-875 | IXD2 | 9 May 1945 | Bergen, Norway | 31 December 1945 | 55.41N 08.28W | Lisahally | | |
| U-883 | IXD/42 | 5 May 1945 | Cuxhaven, Germany | 31 December 1945 | 55.44N 08.40W | Lisahally | | |
| U-901 | VIIC | 15 May 1945 | Stavanger, Norway | 5 January 1946 | 55.50N 8.30W | Lisahally | Unknown causes | |
| U-907 | VIIC | 9 May 1945 | Bergen, Norway | 7 December 1945 | 55.17N 05.59W | Loch Ryan | | |
| U-928 | VIIC | 9 May 1945 | Bergen, Norway | 16 December 1945 | 56.06N 10.05W | Lisahally | | |
| U-930 | VIIC/41 | 9 May 1945 | Bergen, Norway | 29 December 1945 | 55.20N 07.35W | Lisahally | Naval gunfire | HMS Onslow |
| U-956 | VIIC | 13 May 1945 | Loch Eriboll, UK | 17 December 1945 | 55.50N 10.05W | Loch Ryan | Naval gunfire | |
| U-968 | VIIC | 9 May 1945 | Narvik, Norway | 29 November 1945 | 55.24N 06.22W | Loch Ryan | | |
| U-975 | VIIC | 9 May 1945 | Horten, Norway | 10 February 1946 | 55.42N 09.01W | Lisahally | | HMS Loch Arkaig |
| U-978 | VIIC | 9 May 1945 | Trondheim, Norway | 11 December 1945 | 56.10N 10.05W | Loch Ryan | | |
| U-991 | VIIC | 9 May 1945 | Bergen, Norway | 11 December 1945 | 56.10N 10.05W | Loch Ryan | Torpedo | Sunk by submarine HMS Tantivy |
| U-992 | VIIC | 9 May 1945 | Narvik, Norway | 16 December 1945 | 56.10N 10.05W | Loch Ryan | Naval gunfire | |
| U-994 | VIIC | 9 May 1945 | Trondheim, Norway | 5 December 1945 | 55.50N 08.30W | Loch Ryan | | Foundered in tow |
| U-997 | VIIC/41 | 9 May 1945 | Narvik, Norway | 13 December 1945 | 55.50N 10.05W | Loch Ryan | Air attack | |
| U-1002 | VIIC/41 | 9 May 1945 | Bergen, Norway | 13 December 1945 | 56.10N 10.05W | Lisahally | Unknown causes | |
| U-1004 | VIIC/41 | 9 May 1945 | Bergen, Norway | 1 December 1945 | 56.10N 10.05W | Loch Ryan | Naval gunfire | |
| U-1005 | VIIC/41 | 14 May 1945 | Bergen, Norway | 5 December 1945 | 55.33N 08.27W | Loch Ryan | | Foundered in tow |
| U-1009 | VIIC/41 | 10 May 1945 | Loch Eriboll, UK | 16 December 1945 | 55.31N 07.24W | Loch Ryan | Naval gunfire | |
| U-1010 | VIIC/41 | 14 May 1945 | Loch Eriboll, UK | 7 January 1946 | 55.37N 07.49W | Lisahally | Naval gunfire | ORP Garland |
| U-1019 | VIIC/41 | 9 May 1945 | Trondheim, Norway | 7 December 1945 | 55.27N 07.56W | Loch Ryan | Naval gunfire | |
| U-1022 | VIIC/41 | 9 May 1945 | Bergen, Norway | 29 December 1945 | 55.40N 08.15W | Loch Ryan | Unknown causes | |
| U-1023 | VIIC/41 | 10 May 1945 | Portland, UK | 7 January 1946 | 55.49N 08.24W | Lisahally | Unknown causes | |
| U-1052 | VIIC | 9 May 1945 | Bergen, Norway | 9 December 1945 | 55.50N 10.05W | Loch Ryan | Aircraft | 816 Naval Air Squadron |
| U-1061 | VIIF | 9 May 1945 | Bergen, Norway | 1 December 1945 | 56.10N 10.05W | Loch Ryan | Naval gunfire | |
| U-1102 | VIIC | 13 May 1945 | Hohwacht Bay, Germany | 21 December 1945 | 56.04N 09.35W | Loch Ryan | Naval gunfire | |
| U-1103 | VIIC/41 | 8 May 1945 | Cuxhaven, Germany | 30 December 1945 | 56.03N 10.05W | Loch Ryan | Naval gunfire | |
| U-1104 | VIIC/41 | 9 May 1945 | Bergen, Norway | 1 December 1945 | 56.10N 10.05W | Loch Ryan | Naval gunfire | |
| U-1109 | VIIC/41 | 12 May 1945 | Loch Eriboll, UK | 6 January 1946 | 55.49N 08.31W | Lisahally | Torpedoes | HMS Templar |
| U-1110 | VIIC/41 | 14 May 1945 | List, Sylt, Germany | 21 December 1945 | 55.45N 08.19W | Loch Ryan | Naval gunfire | |
| U-1163 | VIIC/41 | 9 May 1945 | Kristiansand, Norway | 11 December 1945 | 55.50N 10.05W | Loch Ryan | Air attack | |
| U-1165 | VIIC/41 | 9 May 1945 | Narvik, Norway | 30 December 1945 | 55.44N 08.40W | Lisahally | Unknown causes | |
| U-1194 | VIIC | 9 May 1945 | Cuxhaven, Germany | 22 December 1945 | 55.59N 09.55W | Loch Ryan | Naval gunfire | |
| U-1198 | VIIC | 8 May 1945 | Cuxhaven, Germany | 17 December 1945 | 56.14N 10.37W | Loch Ryan | | |
| U-1203 | VIIC | 9 May 1945 | Trondheim, Norway | 8 December 1945 | 55.50N 10.05W | Loch Ryan | | |
| U-1230 | IXC/40 | 5 May 1945 | Heligoland, Germany | 17 December 1945 | 55.50N 10.05W | Loch Ryan | Naval gunfire | HMS Cubitt |
| U-1233 | IXC/40 | 5 May 1945 | Baring Bay, near Fredericia, Denmark | 29 December 1945 | 55.51N 08.54W | Loch Ryan | Naval gunfire | HMS Onslaught |
| U-1271 | VIIC/41 | 9 May 1945 | Bergen, Norway | 8 December 1945 | 55.28N 07.20W | Loch Ryan | | |
| U-1272 | VIIC/41 | 10 May 1945 | Bergen, Norway | 8 December 1945 | 55.50N 10.05W | Loch Ryan | | |
| U-1301 | VIIC/41 | 9 May 1945 | Bergen, Norway | 16 December 1945 | 55.50N 10.05W | Loch Ryan | Bombs from British aircraft | |
| U-1307 | VIIC/41 | 9 May 1945 | Bergen, Norway | 9 December 1945 | 55.50N 10.05W | Loch Ryan | Rockets from British aircraft | |
| U-2321 | XXIII | 9 May 1945 | Kristiansand Süd, Norway | 27 November 1945 | 56.10N 10.05W | Loch Ryan | Naval gunfire | HMS Onslaught and ORP Błyskawica |
| U-2322 | XXIII | 9 May 1945 | Stavanger, Norway | 27 November 1945 | 56.10N 10.05W | Loch Ryan | Naval gunfire | HMS Onslaught and ORP Błyskawica |
| U-2324 | XXIII | 9 May 1945 | Stavanger, Norway | 27 November 1945 | 56.10N 10.05W | Loch Ryan | Naval gunfire | HMS Onslow and ORP Błyskawica |
| U-2325 | XXIII | 9 May 1945 | Kristiansand Süd, Norway | 28 November 1945 | 56.10N 10.05W | Loch Ryan | Naval gunfire | HMS Onslow and ORP Błyskawica |
| U-2328 | XXIII | 9 May 1945 | Bergen, Norway | 27 November 1945 | 56.12N 09.48W | Loch Ryan | | Foundered under tow |
| U-2329 | XXIII | 9 May 1945 | Stavanger, Norway | 28 November 1945 | 56.10N 10.05W | Loch Ryan | Naval gunfire | HMS Onslow and ORP Piorun |
| U-2334 | XXIII | 9 May 1945 | Kristiansand Süd, Norway | 28 November 1945 | 56.10N 10.05W | Loch Ryan | Naval gunfire | HMS Onslow and ORP Piorun |
| U-2335 | XXIII | 9 May 1945 | Kristiansand Süd, Norway | 28 November 1945 | 56.10N 10.05W | Loch Ryan | Naval gunfire | HMS Onslow and ORP Piorun |
| U-2336 | XXIII | 15 May 1945 | Kiel, Germany | 3 January 1946 | 56.06N 09.00W | Lisahally | Naval gunfire | HMS Offa |
| U-2337 | XXIII | 9 May 1945 | Kristiansand Süd, Norway | 28 November 1945 | 56.10N 10.05W | Loch Ryan | Naval gunfire | HMS Onslow and ORP Piorun |
| U-2341 | XXIII | 8 May 1945 | Cuxhaven, Germany | 31 December 1945 | 55.44N 08.19W | Lisahally | Naval gunfire | HMS Onslaught and ORP Błyskawica |
| U-2345 | XXIII | 9 May 1945 | Stavanger, Norway | 27 November 1945 | 56.10N 10.05W | Loch Ryan | Scuttled | |
| U-2350 | XXIII | 9 May 1945 | Kristiansand Süd, Norway | 28 November 1945 | 56.10N 10.05W | Loch Ryan | Naval gunfire | HMS Onslow and ORP Piorun |
| U-2351 | XXIII | 5 May 1945 | Flensburg, Germany | 3 January 1946 | 55.50N 08.20W | Lisahally | Naval gunfire | HMS Offa |
| U-2354 | XXIII | 9 May 1945 | Kristiansand Süd, Norway | 22 December 1945 | 56.00N 10.05W | Loch Ryan | Naval gunfire | HMS Onslow |
| U-2356 | XXIII | 5 May 1945 | Cuxhaven, Germany | 6 January 1946 | 55.50N 08.20W | Lisahally | Naval gunfire | HMS Onslaught |
| U-2361 | XXIII | 9 May 1945 | Kristiansand Süd, Norway | 27 November 1945 | 56.10N 10.05W | Loch Ryan | Naval gunfire | HMS Onslow and ORP Błyskawica |
| U-2363 | XXIII | 9 May 1945 | Kristiansand Süd, Norway | 28 November 1945 | 56.10N 10.05W | Loch Ryan | Naval gunfire | HMS Onslow and ORP Piorun |
| U-2502 | XXI | 9 May 1945 | Horten, Norway | 2 January 1946 | 56.06N 09.00W | Moville | | |
| U-2506 | XXI | 9 May 1945 | Bergen, Norway | 5 January 1946 | 55.37N 07.30W | Moville | | |
| U-2511 | XXI | 9 May 1945 | Bergen, Norway | 7 January 1946 | 55.33N 07.38W | Moville | Naval gunfire | Tow parted, sunk by HMS Solebay |
| U-3514 | XXI | 9 May 1945 | Bergen, Norway | 12 February 1946 | 56.00N 10.05W | Loch Ryan | Naval gunfire, depth charges, squid | HMS Loch Arkaig |
| Boat | Type | Surrender Date | Surrender location | Date of sinking | Location | Departure point | Method of Destruction | Remarks |
Note: 116 U-boats were involved in Operation Deadlight (counting U-760).