Alcyone
| Name | Alcyone |
| Type | Sailing vessel |
| GRT | 116 tons |
| Country |  British |
| Built | 1884 |
| Builder | J. H. Vaux, Harwich |
| Operator | W. Shelcott, London |
| History | Wooden ketch barge. |
U-boat attacks on Sailing vessel Alcyone
| Date | U-boat | Loss type | Position | Location | Route | Cargo | Casualties | |
| 1 | 7 Oct 1917 | UB 57 (Otto Steinbrinck) | Sunk | Stopped and scuttled 3 miles NxW of Le Colbart Ridge Buoy | Hull - Dieppe | coal | 0 | |
| Location also given as 12 miles WNW of Boulogne | ||||||||
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