Trois Freres
| Name | Trois Freres |
| Type | Sailing vessel |
| GRT | 107 tons |
| Country |  French |
| Built | 1910 |
| Builder | E. Bonne, Kerity |
| Operator | Yves and JM Meudal, Tréguier |
| History | Schooner. |
U-boat attacks on Sailing vessel Trois Freres
| Date | U-boat | Loss type | Position | Location | Route | Cargo | Casualties | |
| 1 | 6 Mar 1916 | U 32 (Edgar von Spiegel von und zu Peckelsheim) | Sunk | 50 miles WNW of Penmarch | Blaye – Swansea |
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