Trignac
| Name | Trignac |
| Type | Steamer |
| GRT | 2,375 tons |
| Country |  French |
| Built | 1903 |
| Builder | Chant. Nantais de Const. Mar., Nantes |
| Operator | Soc. Anon. des Chargeurs de l’Ouest, Nantes |
| History |
U-boat attacks on Steamer Trignac
| Date | U-boat | Loss type | Position | Location | Route | Cargo | Casualties | |
| 1 | 24 Feb 1916 | UC 6 (Matthias Graf von Schmettow) | Sunk | Mined about 7 miles W of Outer Downsing LV | Nantes - Newcastle | in ballast | 0 |
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