Ships hit by U-186
See the profile page for U-186
| Date | U-boat | Commander | Name of ship | Tons | Nat. | Convoy | ||
| 11 Jan, 1943 | U-186 | Siegfried Hesemann | Ocean Vagabond | 7.174 |  | br | SC-115 | |
| 23 Feb, 1943 | U-186 | Siegfried Hesemann | Eulima | 6.207 | | br | ON-166 | |
| 23 Feb, 1943 | U-186 | Siegfried Hesemann | Hastings | 5.401 |  | am | ON-166 | |
| 18.782 | ||||||||
| 3 ships sunk (18.782 tons). | ||||||||