HMT Senator
| Name | HMT Senator |
| Type | Navy Trawler |
| GRT | 211 tons |
| Country |  British |
| Built | 1905 |
| Builder | Cook, Welton & Gemmell, Ltd., Beverley |
| Operator | Royal Navy |
| History | Peace-time operator: Reunion Steam Fishing Co. Ltd., Grimsby |
U-boat attacks on Navy Trawler Senator
| Date | U-boat | Loss type | Position | Location | Route | Cargo | Casualties | |
| 1 | 21 May 1917 | U 80 (Alfred von Glasenapp) | Sunk | Mined off Tory Island | 55.15N, 08.10W | 11 |
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