Cydonia
| Name | Cydonia |
| Type | Trawler |
| GRT | 259 tons |
| Country |  British |
| Built | 1907 |
| Builder | Charlton and Doughty, Grimsby |
| Operator | North Eastern Steam Fishing Co. Ltd., Grimsby |
| History |
U-boat attacks on Trawler Cydonia
| Date | U-boat | Loss type | Position | Location | Route | Cargo | Casualties | |
| 1 | 25 Jul 1915 | U 41 (Claus Hansen) | Sunk | Stopped and sunk by gunery 70 miles NxW of Hoy | 59.53N, 01.18W | Fishing | 0 |
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