Whooper
| Name | Whooper |
| Type | Navy Trawler |
| GRT | 302 tons |
| Country |  British |
| Built | 1914 |
| Builder | J. Duthie Torry SB. Co., Aberdeen |
| Operator | Royal Navy |
| History | Peace-time operator: Cygnet Steam Fishing Co., Ltd. (R. W. Mason), Fleetwood |
U-boat attacks on Navy Trawler Whooper
| Date | U-boat | Loss type | Position | Location | Route | Cargo | Casualties | |
| 1 | 30 Jun 1916 | UC 1 (Kurt Ramien) | Sunk | Mined 4.5 miles north of Southwold | 9 |
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