Mars
| Name | Mars |
| Type | Steamer |
| GRT | 3,550 tons |
| Country |  British |
| Built | 1907 |
| Builder | Furness, Withy & Co., Ltd., West Hartlepool |
| Operator | Globe Shipping Co., Ltd. (Humphries (Cardiff), Ltd.), Cardiff |
| History |
U-boat attacks on Steamer Mars
| Date | U-boat | Loss type | Position | Location | Route | Cargo | Casualties | |
| 1 | 8 Jul 1918 | U 92 (Günther Ehrlich) | Sunk | 74 miles WxN of Bishop Rock | 49.44N, 08.20W | New York - Le Havre | general cargo | 0 |
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