Grappler
| Name | Grappler |
| Type | Tug |
| GRT | 690 tons |
| Country |  British |
| Built | 1908 |
| Builder | Chatham Dockyard |
| Operator | Royal Navy |
| History |
U-boat attacks on Tug Grappler
| Date | U-boat | Loss type | Position | Location | Route | Cargo | Casualties | |
| 1 | 22 Oct 1915 | UC 5 (Herbert Pustkuchen) | Damaged | Mined off the Nab LV while salvaging gear from the Erin II. | 4 |
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