Cooroy
| Name | Cooroy |
| Type | Sailing vessel |
| GRT | 2,470 tons |
| Country |  British |
| Built | 1892 |
| Builder | R. Williamson & Son, Workington |
| Operator | Commonwealth of Australia requisition |
| History | Four-masted, steel-hulled bark. Built as Conishead. |
U-boat attacks on Sailing vessel Cooroy
| Date | U-boat | Loss type | Position | Location | Route | Cargo | Casualties | |
| 1 | 29 Aug 1917 | UC 75 (Johannes Lohs) | Sunk | Stopped and sunk 16 miles SSE of Ballycotton | Tocopilla - Liverpool | nitrate | 0 |
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