HMT Helgian
| Name | HMT Helgian |
| Type | Navy Trawler |
| GRT | 220 tons |
| Country |  British |
| Built | 1914 |
| Builder | Cochrane & Sons, Ltd., Selby |
| Operator | Royal Navy |
| History | Peace-time operator: Great Central Co-Op Eng. Co., Grimsby |
U-boat attacks on Navy Trawler Helgian
| Date | U-boat | Loss type | Position | Location | Route | Cargo | Casualties | |
| 1 | 6 Sep 1917 | UC 23 (Volkhard von Bothmer) | Sunk | Mined in the Gulf of Ruphani, Aegean Sea | 10 | |||
| Two survivors. | ||||||||
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