Marie Alfred
| Name | Marie Alfred |
| Type | Sailing vessel |
| GRT | 159 tons |
| Country |  French |
| Built | 1902 |
| Builder | Alleau. Trentemoult |
| Operator | G. de Boutray, Granville |
| History | wooden brigantine |
U-boat attacks on Sailing vessel Marie Alfred
| Date | U-boat | Loss type | Position | Location | Route | Cargo | Casualties | |
| 1 | 12 Aug 1917 | UB 40 (Hans Howaldt) | Sunk | Stopped and sunk N of Ushant |
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