Silene
| Name | Silene |
| Type | Sailing vessel |
| GRT | 171 tons |
| Country |  French |
| Built | 1905 |
| Builder | E. Bonne, Kerity |
| Operator | Le Hégarat, Paimpol |
| History | Wooden schooner |
U-boat attacks on Sailing vessel Silene
| Date | U-boat | Loss type | Position | Location | Route | Cargo | Casualties | |
| 1 | 17 Feb 1917 | UC 21 (Reinhold Saltzwedel) | Sunk | 50 miles N of Ushant |
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