Manchester Mariner
| Name | Manchester Mariner |
| Type | Steamer |
| GRT | 4,106 tons |
| Country |  British |
| Built | 1904 |
| Builder | Furness, Withy & Co., Ltd., West Hartlepool |
| Operator | Manchester Liners, Ltd., Manchester |
| History |
U-boat attacks on Steamer Manchester Mariner
| Date | U-boat | Loss type | Position | Location | Route | Cargo | Casualties | |
| 1 | 4 Dec 1917 | UC 64 (Erich Hecht) | Damaged | Mined 7 to 8 miles E of Manacles | Leith - ? | coal | 0 |
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