Marne
| Name | Marne |
| Type | Steamer |
| GRT | 979 tons |
| Country |  French |
| Built | 1907 |
| Builder | Scott of Kinghorn, Ltd., Kinghorn |
| Operator | Mory & Cie., Le Havre |
| History |
U-boat attacks on Steamer Marne
| Date | U-boat | Loss type | Position | Location | Route | Cargo | Casualties | |
| 1 | 29 Oct 1917 | UC 63 (Karsten von Heydebreck) | Sunk | 25 miles NE of Barfleur | 50.30N, 01.20W | Rouen - Cardiff | ||
| Location approximate | ||||||||
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