Cocos
| Name | Cocos |
| Type | Sailing vessel |
| GRT | 85 tons |
| Country |  Danish |
| Built | 1914 |
| Builder | ?, Marstal |
| Operator | H.M. Petersen, Marstal |
| History | Three-masted, wooden schooner. |
U-boat attacks on Sailing vessel Cocos
| Date | U-boat | Loss type | Position | Location | Route | Cargo | Casualties | |
| 1 | 12 Jun 1915 | U 17 (Hans Walther) | Sunk | Stopped and sunk E of Tod Head Point | 56.40N, 01.24W | Christiania - Leith | timber | 0 |
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