Mariston
| Name | Mariston |
| Type | Steamer |
| GRT | 2,908 tons |
| Country |  British |
| Built | 1915 |
| Builder | Russell & Co., Port Glasgow |
| Operator | Mariston SS. Co., Ltd. (W. S. Miller & Co.), Glasgow |
| History |
U-boat attacks on Steamer Mariston
| Date | U-boat | Loss type | Position | Location | Route | Cargo | Casualties | |
| 1 | 15 Jul 1917 | U 45 (Erich Sittenfeld) | Sunk | 82 miles W of Fastnet | 50.52N, 11.38W | Almeria - Glasgow | copper ore | 28 |
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